<style id="elementor-post-dynamic-3146">.elementor-3146 .elementor-element.elementor-element-faea210:not(.elementor-motion-effects-element-type-background), .elementor-3146 .elementor-element.elementor-element-faea210 > .elementor-motion-effects-container > .elementor-motion-effects-layer{background-image:url("https://omespay.be/wp-content/uploads/2026/09/Logo-post-image-scaled.png");}</style>{"id":3146,"date":"2026-09-13T13:47:25","date_gmt":"2026-09-13T13:47:25","guid":{"rendered":"https:\/\/omespay.be\/?p=3146"},"modified":"2026-09-13T18:50:33","modified_gmt":"2026-09-13T18:50:33","slug":"betaalintegratie-testscenarios","status":"publish","type":"post","link":"https:\/\/omespay.be\/en\/betaalintegratie-testscenarios\/","title":{"rendered":"12 Tests Every Payment Integration Must Pass"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3146\" class=\"elementor elementor-3146\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-faea210 e-flex e-con-boxed e-con e-parent\" data-id=\"faea210\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-243dfb5a e-flex e-con-boxed e-con e-parent\" data-id=\"243dfb5a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3f07e63f e-con-full e-flex e-con e-child\" data-id=\"3f07e63f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-742390e0 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"742390e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">12 Tests Every Payment Integration Must Pass<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3383fc84 elementor-widget elementor-widget-post-info\" data-id=\"3383fc84\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-a2086e6 elementor-inline-item\" itemprop=\"about\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-tags\" viewbox=\"0 0 640 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.941 225.941L286.059 14.059A48 48 0 0 0 252.118 0H48C21.49 0 0 21.49 0 48v204.118a48 48 0 0 0 14.059 33.941l211.882 211.882c18.744 18.745 49.136 18.746 67.882 0l204.118-204.118c18.745-18.745 18.745-49.137 0-67.882zM112 160c-26.51 0-48-21.49-48-48s21.49-48 48-48 48 21.49 48 48-21.49 48-48 48zm513.941 133.823L421.823 497.941c-18.745 18.745-49.137 18.745-67.882 0l-.36-.36L527.64 323.522c16.999-16.999 26.36-39.6 26.36-63.64s-9.362-46.641-26.36-63.64L331.397 0h48.721a48 48 0 0 1 33.941 14.059l211.882 211.882c18.745 18.745 18.745 49.137 0 67.882z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-terms\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-post-info__terms-list\">\n\t\t\t\t<span class=\"elementor-post-info__terms-list-item\">Point-of-Sale Systems<\/span>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-6bd7875 elementor-inline-item\" itemprop=\"author\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-user\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 256c70.7 0 128-57.3 128-128S294.7 0 224 0 96 57.3 96 128s57.3 128 128 128zm89.6 32h-16.7c-22.2 10.2-46.9 16-72.9 16s-50.6-5.8-72.9-16h-16.7C60.2 288 0 348.2 0 422.4V464c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48v-41.6c0-74.2-60.2-134.4-134.4-134.4z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-author\">\n\t\t\t\t\t\t\t\t\t\tOmEs Pay\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-3b6be0f elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-calendar\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>September 13, 2026<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71376eac elementor-widget elementor-widget-text-editor\" data-id=\"71376eac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Payment issues are often rare but have a significant impact. A customer might pay twice, an order might remain open by mistake, or a refund might only be visible in one system. With a fixed test set, you can make these exceptions predictable.<\/p><h4><strong>Transaction Statuses<\/strong><\/h4><ul><li>Payment processed successfully with the correct amount and reference<\/li><li>Refusal to pay, with the sale remaining open<\/li><li>Customer cancels without an incorrect payment status<\/li><li>Timeout, after which the final status is retrieved<\/li><\/ul><p>A reliable flow starts with a <a href=\"https:\/\/omespay.be\/en\/kassasystemen\/kassakoppeling-betaal-api\/\"><strong data-start=\"443\" data-end=\"512\">Secure connection between your point-of-sale system and payment terminal or payment API<\/strong>.<\/a><\/p><h4><strong>Duplicate and Delayed Messages<\/strong><\/h4><ul><li>Double-click or repeated request without a duplicate transaction<\/li><li>The webhook is triggered twice without causing a duplicate effect<\/li><li>Webhook arrives late or in a different order<\/li><li>The return page is accessed without a confirmed provider status<\/li><\/ul><p>Do you want to understand first? <a href=\"https:\/\/omespay.be\/en\/hoe-werkt-kassakoppeling-betaalterminal\/\"><strong data-start=\"996\" data-end=\"1028\">How a POS integration works<\/strong>?<\/a> Be sure to check out the technical explanation as well.<\/p><h4><strong>Refund and Correction<\/strong><\/h4><ul><li>Full refund with updated checkout or order status<\/li><li>Partial refund where supported and the correct amount is shown<\/li><li>Refund Denied or Paused with Clear Follow-Up<\/li><\/ul><p>Refunds and adjustments are also important when selling online; be sure to check out our information on <a href=\"https:\/\/omespay.be\/en\/betaaloplossingen\/e-commerce\/\"><strong data-start=\"1567\" data-end=\"1592\">e-commerce payments<\/strong>.<\/a><\/p><h4><strong>Recovery and Security<\/strong><\/h4><ol start=\"12\"><li>Restart the POS system, terminal, router, or integration service during a transaction and verify that it recovers. Also, test for expired credentials, insufficient permissions, and sandbox-production separation.<\/li><\/ol><p>Logs should provide sufficient context without containing map data or secrets.<\/p><h4><strong>Test with unique references<\/strong><\/h4><p>Use unique identifiers for each order and payment attempt. Specify which status takes precedence and how an operator should retrieve a transaction. This prevents a test from being evaluated based solely on screen shots.<\/p><p>Keep a record of the scenario, expected outcome, actual outcome, software version, and date.<\/p><h4><strong>Retest after updates<\/strong><\/h4><p>Repeat the critical scenarios after major POS releases, plugin updates, terminal firmware updates, or API changes. Automate wherever possible, but maintain an end-to-end test using actual test hardware and the provider\u2019s environment.<\/p><p>Assign an owner to be responsible for releasing the new version.<\/p><h4><strong>Making the right choice starts with how you operate<\/strong><\/h4><p>A payment integration is ready for production when the team knows what happens in both successful and uncertain scenarios. A fixed regression test protects you from problems that may resurface after updates.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-422eb3c2 e-flex e-con-boxed e-con e-parent\" data-id=\"422eb3c2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4f4078a e-con-full e-flex e-con e-child\" data-id=\"4f4078a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-4f1914ce e-con-full e-flex e-con e-child\" data-id=\"4f1914ce\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43d0646c elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"43d0646c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Test Before Your Customers Do<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7eb79c3a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"7eb79c3a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div id=\"comp-mkazuzvd\" class=\"N8MGzv _v6ohL PO9MfV AWXfZq comp-mkazuzvd wixui-rich-text\" data-testid=\"richTextElement\" data-motion-enter=\"done\"><section id=\"comp-mkb8fsud\" class=\"ke5pl1 comp-mkb8fsud wixui-section fwXYgt\" tabindex=\"-1\" data-block-level-container=\"Section\" data-testid=\"section-container\"><div class=\"comp-mkb8fsud-container max-width-container\" role=\"group\" data-testid=\"responsive-container-content\"><div id=\"comp-mkb8mdfh\" class=\"HFEOE3 NaeT1r comp-mkb8mdfh-container comp-mkb8mdfh wixui-box\" dir=\"ltr\" role=\"\"><div id=\"comp-mkb8j35m\" class=\"HFEOE3 NaeT1r comp-mkb8j35m-container comp-mkb8j35m wixui-box\" dir=\"ltr\" role=\"\"><div id=\"comp-mkb8j36a\" class=\"N8MGzv _v6ohL PO9MfV AWXfZq comp-mkb8j36a wixui-rich-text\" data-testid=\"richTextElement\"><div data-tsd-source=\"\/src\/routes\/offerte-aanvragen.tsx:50:148\"><p>OmEs pay works with your POS or software vendor to verify terminal and provider behavior and documents the practical troubleshooting procedure.<\/p><\/div><\/div><\/div><\/div><\/div><\/section><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-266dd3bb elementor-mobile-align-justify elementor-widget elementor-widget-button\" data-id=\"266dd3bb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/omespay.be\/en\/offerte-aanvragen\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"icon icon-right-arrow\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Test Your Payment Integration<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Payment issues are often rare but have a significant impact. A customer might pay twice, an order might remain open by mistake, or a refund might only be visible in one system. With a fixed test set, you can make these exceptions predictable.<\/p>","protected":false},"author":3,"featured_media":2572,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[27],"class_list":["post-3146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kassasystemen","tag-kassakoppeling-api"],"_links":{"self":[{"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/posts\/3146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/comments?post=3146"}],"version-history":[{"count":0,"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/posts\/3146\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/media\/2572"}],"wp:attachment":[{"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/media?parent=3146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/categories?post=3146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/omespay.be\/en\/wp-json\/wp\/v2\/tags?post=3146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}