{"id":10551,"date":"2025-10-08T19:44:54","date_gmt":"2025-10-08T19:44:54","guid":{"rendered":"https:\/\/www.alphapay.com\/?p=10551"},"modified":"2025-10-08T19:58:01","modified_gmt":"2025-10-08T19:58:01","slug":"how-qr-code-payments-work","status":"publish","type":"post","link":"https:\/\/www.alphapay.com\/zh\/how-qr-code-payments-work\/","title":{"rendered":"How QR Code Payments Work"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10551\" class=\"elementor elementor-10551\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-850ec8f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"850ec8f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2075e41\" data-id=\"2075e41\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d59cc61 elementor-widget elementor-widget-text-editor\" data-id=\"d59cc61\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.13.3 - 28-05-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 1 []\">In recent years, QR (Quick Response) codes have become ubiquitous on menus, posters, receipts, and increasingly at point of sale. What once was a novelty is now a practical, low-friction medium for digital payments, especially in markets embracing contactless and mobile-first experiences. But how exactly do QR code payments work? What types of QR codes exist? And how can businesses adopt them? This article gives a full overview.<\/p><h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 3 []\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">In This Article<\/strong><\/h2><ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\"><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">What is a QR code?\u00a0<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Anatomy of a QR Code<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Types of QR codes\u00a0<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">How do QR codes work?\u00a0<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">How are QR codes used for payment?\u00a0<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">How businesses can use QR codes for payments<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">How to generate QR codes\u00a0<\/li><\/ul><h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">What is a QR Code?<\/h2><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">A QR code (short for <em data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"em\">Quick Response code<\/em>) is a type of two-dimensional (2D) barcode or \u201cmatrix code.\u201d Unlike traditional linear barcodes that encode information along one dimension, QR codes encode data in both horizontal and vertical dimensions, allowing them to pack significantly more information into a compact square form.<\/p><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Key features of QR codes:<\/p><ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\"><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">They consist of black modules (squares) on a white background arranged in a square grid.<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">They include finder and alignment patterns (the big square markers in corners) that allow scanners to detect orientation, scale, and skew.<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">They use error correction (based on Reed\u2013Solomon codes) so that\u2014even if parts are damaged or obscured\u2014the contents can still be read.<\/p><\/li><li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\"><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">They can encode different kinds of data (numeric, alphanumeric, binary, even Kanji) depending on design.<\/p><\/li><\/ul><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Because of their robustness and capacity, QR codes are well suited for linking physical objects (like a printed receipt or a storefront sign) to digital data or actions, including payments.<\/p><h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Anatomy of a QR Code<\/h2><p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">While a QR code looks like a simple grid of black and white squares, every part of its design serves a functional purpose. Its layout allows scanners to quickly detect, orient, and decode data \u2014 even when the code is partially damaged or distorted.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7ef285 elementor-widget elementor-widget-image\" data-id=\"a7ef285\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.13.3 - 28-05-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"480\" src=\"https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code-1024x615.jpg\" class=\"attachment-large size-large wp-image-10555\" alt=\"\" srcset=\"https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code-1024x615.jpg 1024w, https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code-300x180.jpg 300w, https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code-768x461.jpg 768w, https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code-1536x923.jpg 1536w, https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code-18x12.jpg 18w, https:\/\/www.alphapay.com\/wp-content\/uploads\/2025\/10\/Anatomy-of-a-QR-Code.jpg 1665w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e068274 elementor-widget elementor-widget-text-editor\" data-id=\"e068274\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h6 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 3 []\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Positioning Patterns<\/strong><\/h6>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">The three large squares located in the corners (except the bottom-right) allow scanners to detect the QR code\u2019s orientation. They help determine which way is \u201cup\u201d so the rest of the code can be properly read, even if it\u2019s rotated or viewed at an angle.<\/p>\n<h6 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Alignment Pattern<\/strong><\/h6>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">The smaller square near the bottom-right corner helps correct for distortions, ensuring that data modules line up properly. Higher-version QR codes include multiple alignment patterns across the grid.<\/p>\n<h6 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Timing Patterns<\/strong><\/h6>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">These alternating black and white lines connect the positioning patterns and help the scanner measure the size of each data module (the individual squares). This ensures consistent spacing and accurate sampling.<\/p>\n<h6 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Version Information<\/strong><\/h6>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">QR codes can come in 40 different versions, each with varying data capacities and sizes. The version information encodes which type of QR code is being scanned, guiding the decoding process.<\/p>\n<h6 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Format Information<\/strong><\/h6>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">This section stores data about the QR code\u2019s error-correction level and mask pattern. It helps the scanner interpret the data correctly, even under suboptimal conditions.<\/p>\n<h6 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Quiet Zone<\/strong><\/h6>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">The white border around the QR code is more than aesthetic spacing \u2014 it\u2019s a required buffer zone that separates the code from other printed material. Without it, scanners might struggle to identify where the QR code begins and ends.<\/p>\n<h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Types of QR Codes<\/h2>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Not all QR codes are created equal. Depending on the use case, encoding method, or standard, different types of QR codes may be used.<\/p>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Here are some common types:<\/p>\n<ol class=\"ak-ol\" start=\"1\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"orderedList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Standard QR Code (Model 2, ISO\/IEC 18004)<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>This is the \u201cclassic\u201d QR code most people see. It supports a wide range of data types and sizes.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Micro QR Code<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>A smaller variant for constrained spaces. It holds less data but suits small labels or limited real estate.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Rectangular Micro QR Code (rMQR)<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>A newer rectangular variant of QR codes for cases when a tall or wide aspect is needed.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Stylized \/ Aesthetic QR Codes<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>These incorporate logos, colors, or custom art while preserving scanability. Advanced generation techniques ensure readability under distortion.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Standardized Payment QR Codes \/ Protocol-Specific Codes<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>These follow payment-specific protocols, embedding structured payment information for interoperability. Examples include:<\/p>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">EPC QR code (Europe)<\/strong>: A European Payments Council standard for embedding SEPA credit transfer details in a QR code.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Short Payment Descriptor (SPAYD \/ SPD)<\/strong>: A compact format used in some countries (e.g. Czech Republic) to store payment instructions like IBAN, amount, and a message.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">QR Ph<\/strong>: The Philippines\u2019 national QR payment standard.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">ASEAN Integrated QR Code Payment System<\/strong>: A regional initiative among ASEAN nations to have interoperable QR payments across borders.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Custom \/ Proprietary QR Codes<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>Payment providers (e.g. Alipay, WeChat Pay, PayPal, various local digital wallet systems) may use QR codes that encode data in their proprietary formats or link to deep APIs.<\/p>\n<\/li>\n<\/ol>\n<h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">How Do QR Codes Work (Technical)<\/h2>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">To understand QR code payments, it helps to first understand how QR codes in general operate.<\/p>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Scanning and Decoding<\/h3>\n<ol class=\"ak-ol\" start=\"1\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"orderedList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Capture \/ imaging<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>When a camera (e.g. on a smartphone) sees a QR code, it captures an image containing the pattern of black and white modules.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Detection of finder patterns and alignment<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>The scanning software locates the three \u201cfinder\u201d squares (in three corners), which help detect the QR code\u2019s orientation, scale, and skew. Alignment patterns assist with distortions.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Grid sampling &amp; normalization<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>The image is rectified (warped, rotated) into a regular grid of modules (square cells). Each cell can be sampled to decide black or white.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Data extraction &amp; decoding<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>Bits are read in a zigzag pattern (or other defined pattern per standard), retrieving codewords. Error correction is applied (Reed\u2013Solomon) to recover from partial damage or distortion. Then the encoded data (numeric, alphanumeric, byte) is reconstructed.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Interpretation \/ action<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>Often the decoded data is a URL or structured string. The scanning app (camera app or payment app) interprets it and triggers the appropriate response.<\/p>\n<\/li>\n<\/ol>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Linking QR to Payments<\/h3>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">In payment use cases, the QR code doesn\u2019t itself <em data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"em\">process<\/em> money \u2014 rather, it encodes information (or a link) that directs a payment app or backend to initiate a transaction.<\/p>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Two typical patterns:<\/p>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Static QR code<\/strong>: Encodes a fixed identifier (e.g. merchant account or wallet address). The payer selects amount manually or confirms.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Dynamic QR code<\/strong>: Encodes not just merchant ID but also transaction-specific data \u2014 amount, order ID, timestamp, etc. This ensures the correct payment amount and associates the transaction to a specific sale.<\/p>\n<\/li>\n<\/ul>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">When scanned, the payment app reads the encoded data (or follows a link) and communicates with the backend server to request a transfer or charge. The backend confirms and notifies both parties of the result.<\/p>\n<h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">How are QR Codes Used for Payments?<\/h2>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Let\u2019s walk through the flow and variants of QR code payments in practice.<\/p>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Basic Payment Flow<\/h3>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Here\u2019s a typical \u201cscan-to-pay\u201d flow:<\/p>\n<ol class=\"ak-ol\" start=\"1\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"orderedList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Merchant displays a QR code<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>Either printed at checkout, shown onscreen, printed on a receipt, or displayed in the store.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Customer scans it with a smartphone<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>They use their bank app, e-wallet app, or other payment app.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">App reads \/ decodes the QR<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>The app extracts the payment metadata: merchant identifier, amount, order reference, currency, etc.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">App shows confirmation prompt<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>The customer reviews the amount, maybe adds tip, selects funding source (bank account, wallet, card), and confirms.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">App initiates payment to backend<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>The payment system processes it (either via direct bank transfer, QR payment rails, or payment network).<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Success feedback<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>The app shows \u201cpayment succeeded,\u201d and optionally, the merchant system receives confirmation (e.g. via API\/webhook) allowing fulfilment.<\/p>\n<\/li>\n<\/ol>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Because the transaction is routed via the app and backend system, there\u2019s no need for a physical card terminal at the moment of scanning \u2014 that reduces hardware costs.<\/p>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Examples &amp; Use Cases<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Restaurant \/ Food Stands<\/strong>: Some restaurants print a unique QR code on each bill. When diners scan it, they land on a payment page showing that bill\u2019s total; they can tip and pay without staff intervention.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Retail \/ small merchants<\/strong>: A merchant posts a static QR code at the counter; customers scan and enter or confirm the amount.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">On-invoice or POS-embedded<\/strong>: The merchant system dynamically generates a QR code for each checkout instance, including order ID and amount.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">P2P \/ peer-to-peer transfers<\/strong>: A person wanting money can show a QR code representing their account or wallet; others scan and send money.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Utility bills \/ invoices<\/strong>: An invoice may include a QR code that, when scanned, triggers a payment of that invoice amount.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">E-commerce \/ remote<\/strong>: A seller might show a QR code on a website (or email) so that the buyer can pay via mobile app by scanning.<\/p>\n<\/li>\n<\/ul>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">In effect, QR code payments bridge the offline physical world (a printed code) with the digital backend.<\/p>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Benefits of Using QR Code Payments<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Low hardware cost<\/strong>: No need for specialized card terminals or point-of-sale hardware (beyond basic display).<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Speed &amp; convenience<\/strong>: The user points, taps, and pays to reduce friction.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Interoperability<\/strong>: Many payment apps already support QR scanning, making adoption easier.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Flexibility in placement<\/strong>: QR codes can be printed on receipts, menus, tables, windows, packaging, etc.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Security &amp; transparency<\/strong>: Dynamic QR codes and structured protocols reduce risk of manual errors or fraud.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Data &amp; integration<\/strong>: Because the scan typically triggers an API call, transactions are easily logged and tied to backend systems.<\/p>\n<\/li>\n<\/ul>\n<h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">How Businesses Can Use QR Codes for Payments<\/h2>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">If you run a business (or advise one), here are strategies and best practices around QR payments.<\/p>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Decide on static vs dynamic QR<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Static QR codes<\/strong>: Simple, reusable, and low-maintenance. Good for small merchants with low variability.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Dynamic QR codes<\/strong>: Better for controlled transactions, ensuring correct amounts and transaction linking to your backend systems.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Embed in Your Payment Workflows<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Integrate with your point-of-sale (POS) system or billing software to auto-generate QR codes per sale.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">For online orders (e.g. click &amp; collect), show a QR code on the order confirmation screen or email the customer.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">On invoices, embed a QR payment code so your clients can pay effortlessly.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Customer Experience &amp; UI<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Make sure when customers scan, they land on a clear, mobile-friendly payment page (or app) that shows amount, line items, tip options, etc.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Show clear instructions: \u201cScan this code using your banking \/ wallet app,\u201d or list supported apps.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">After payment, provide confirmation (on screen, by SMS, or email) to reassure.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Security &amp; Fraud Prevention<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Use dynamic or unique QR codes when possible \u2014 this helps prevent misuse or replay attacks.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Monitor for QR-tampering (e.g. fake QR stickers pasted over yours) \u2014 a known scam risk called \u201cquishing.\u201d<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Use HTTPS \/ secure links when embedding payment URLs, and validate origin and integrity server-side.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Regularly audit and replace static codes if needed.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Analytics &amp; Tracking<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Add UTM or tracking parameters in QR code URLs to monitor scan sources (window display, receipt, tabletop, etc.).<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Track conversion rates, abandonment rates, and times of day.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Use scan and payment logs to reconcile sales and detect anomalies.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">Marketing and Incentives<\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Use QR payments as promotional levers\u2014offer discounts or loyalty points when customers pay via QR.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Combine QR codes with in-store signage, promotions, or \u201cscan to pay \/ donate \/ register\u201d experiences.<\/p>\n<\/li>\n<\/ul>\n<h2 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\">How to Generate QR Codes for Payments<\/h2>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 3 []\">For businesses that serve global customers, enabling QR code payments through <a href=\"https:\/\/www.alphapay.com\/canadian-businesses-adding-wechat-pay-alipay-and-unionpay\/\" data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"link\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">WeChat Pay, Alipay, and UnionPay<\/strong><\/a> can be a game-changer. These wallets represent hundreds of millions of active users who expect a seamless, mobile-first experience. With AlphaPay, you can generate and accept payment QR codes for these networks easily.<\/p>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">When you create a payment through AlphaPay\u2019s merchant portal or API, a unique dynamic QR code is automatically generated for that transaction. Each QR code encodes a secure payment link tied to the exact order amount and merchant ID. When a customer scans it using their WeChat Pay, Alipay, or UnionPay app, their wallet recognizes the merchant credentials and displays a confirmation page for instant checkout.<\/p>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">WeChat Pay<\/strong><\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Flow:<\/strong> Customers scan the AlphaPay QR code using the <em data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"em\">WeChat<\/em> app or mini-program.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Result:<\/strong> The app instantly recognizes your business as a verified WeChat Pay merchant and completes the transaction in RMB.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Use Case:<\/strong> Ideal for retail stores, restaurants, or tourism merchants who want to serve WeChat users without additional hardware.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Alipay<\/strong><\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Flow:<\/strong> Shoppers scan the same QR code with their <em data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"em\">Alipay<\/em> app.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Result:<\/strong> The payment page shows your business name, total amount, and order reference. Customers authorize payment using face ID or PIN, and the transaction is confirmed in seconds.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Use Case:<\/strong> Common among eCommerce merchants, luxury retailers, and hospitality businesses targeting Chinese consumers abroad.<\/p>\n<\/li>\n<\/ul>\n<h3 data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"heading\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">UnionPay Online<\/strong><\/h3>\n<ul class=\"ak-ul\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"bulletList\" data-prosemirror-node-block=\"true\">\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Flow:<\/strong> The QR code links directly to UnionPay Online Payment, UnionPay\u2019s secure cross-border channel.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Result:<\/strong> Customers scan to pay via their UnionPay wallet or supported banking app.<\/p>\n<\/li>\n<li data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"listItem\" data-prosemirror-node-block=\"true\">\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Use Case:<\/strong> Excellent for businesses serving international students, tourists, or clients from China who prefer paying with their UnionPay card or wallet.<\/p>\n<\/li>\n<\/ul>\n<p data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\" data-pm-slice=\"1 1 []\"><strong data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"strong\">Ready to welcome the next wave of global shoppers?<\/strong><br data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"hardBreak\" data-prosemirror-node-inline=\"true\" \/>Explore what it means to accept QR code payments with AlphaPay\u2014or <strong><a href=\"https:\/\/www.alphapay.com\/contact-us\/\" data-prosemirror-content-type=\"mark\" data-prosemirror-mark-name=\"link\">connect with our team<\/a> <\/strong>to get started.<\/p>\n<p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In recent years, QR (Quick Response) codes have become ubiquitous on menus, posters, receipts, and increasingly at point of sale. What once was a novelty is now a practical, low-friction medium for digital payments, especially in markets embracing contactless and mobile-first experiences. But how exactly do QR code payments work? What types of QR codes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10553,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[29],"tags":[],"class_list":["post-10551","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How QR Code Payments Work - AlphaPay<\/title>\n<meta name=\"description\" content=\"A QR code is a type of two-dimensional barcode or \u201cmatrix code.\u201d Unlike traditional linear barcodes that encode information along one dimension, QR codes encode data in both horizontal and vertical dimensions\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alphapay.com\/zh\/how-qr-code-payments-work\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How QR Code Payments Work - 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