{"id":29982,"date":"2026-04-28T14:20:34","date_gmt":"2026-04-28T14:20:34","guid":{"rendered":"https:\/\/www.b2u.eu\/psps\/worldline\/payid\/"},"modified":"2026-04-28T14:35:36","modified_gmt":"2026-04-28T14:35:36","slug":"payid","status":"publish","type":"page","link":"https:\/\/www.b2u.eu\/en\/psps\/worldline\/payid\/","title":{"rendered":"PAYID"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"29982\" class=\"elementor elementor-29982 elementor-29952\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a195186 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a195186\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;slideshow&quot;,&quot;background_slideshow_gallery&quot;:[],&quot;background_slideshow_loop&quot;:&quot;yes&quot;,&quot;background_slideshow_slide_duration&quot;:5000,&quot;background_slideshow_slide_transition&quot;:&quot;fade&quot;,&quot;background_slideshow_transition_duration&quot;:500}\">\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-3807b8f\" data-id=\"3807b8f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a94177a elementor-widget elementor-widget-html\" data-id=\"a94177a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"content\"><\/div>\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<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-28cf1d7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"28cf1d7\" data-element_type=\"section\" data-e-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-5c2ab8b\" data-id=\"5c2ab8b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ee24d77 elementor-widget elementor-widget-image\" data-id=\"ee24d77\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"300\" src=\"https:\/\/www.b2u.eu\/wp-content\/uploads\/2026\/04\/payid750-en-1.png\" class=\"attachment-large size-large wp-image-29980\" alt=\"wijzigingen in payid\" srcset=\"https:\/\/www.b2u.eu\/wp-content\/uploads\/2026\/04\/payid750-en-1.png 750w, https:\/\/www.b2u.eu\/wp-content\/uploads\/2026\/04\/payid750-en-1-300x120.png 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/>\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-5e82801 elementor-widget elementor-widget-heading\" data-id=\"5e82801\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Important: Upcoming changes to payment ID (PAYID) format<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db345e2 elementor-widget elementor-widget-text-editor\" data-id=\"db345e2\" data-element_type=\"widget\" data-e-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\t\t<p><strong>We are contacting you with the below information, which we suggest to share with your technical integrator, developer or webmaster<\/strong><\/p>\n<p>Please be informed about an upcoming change to the payment ID (PAYID) format, which is necessary as we are approaching the 10 billionth payment in the Production environment.<\/p>\n<p>In theory, this change should be transparent as PAYID was not designed as a fixed-length field. However, some integrations may have made assumptions about PAYID format (e.g., hard-coding logic that expects exactly 10 digits or reading only the first 10 digits). As a result , <strong>this may affect how PAYIDs appear in API responses and how you reconcile payments.<\/strong><\/p>\n<p><strong>What will change?<\/strong><\/p>\n<ul>\n<li><strong>Ogone Legacy:<\/strong> PAYID length will increase from 10 to 11 digits<\/li>\n<li>Worldline Global Online Pay <strong>Direct<\/strong>: PAYID format 9999999999_0 will become 99999999999_0<\/li>\n<li>Worldline Global Online Pay<strong> Direct:<\/strong>PAYID format 9000009999999999000 will become<br \/>\n9000099999999999000.<\/li>\n<\/ul>\n<p><strong>Note for PAYID19 users<\/strong><br \/>The 19-digit format remains unchanged. The only exception applies to merchants who convert between PAYID19 and PAYIDLegacy \u2014 checksum calculations will need updating to reflect the new 11-digit length.<\/p>\n<p><strong>Structured Communication impact (reconciliation)<\/strong><br \/>Currently, the structured communication value used for reconciliation is generated by taking the first ten digits of the PAYID and applying a modulo 97 checksum to produce a checksum, which is then appended to the PAYID inside a 12-character structure. For example, a ten-digit PAYID of 9999999999 yields a structured communication value of +++99999\/9999\/948+++.<\/p>\n<p>With the PAYID length increasing to eleven digits, the existing 12-digit structured communication no longer fits. To accommodate this, we will change the generation rule: we will take the rightmost ten digits of the eleven-digit PAYID and apply the same modulo 97 checksum to those ten digits. For instance, if the PAYID is 10000000123, we will extract the ten rightmost digits 0000000123 and compute the checksum (123 mod 97) to produce a new structured communication like +++00000\/0012\/326+++.<\/p>\n<p>To recover the original PAYID from the structured communication, you will need to add 10000000000 to the first ten digits embedded in the structured communication.<\/p>\n<p><strong>When will it change?<\/strong><br \/>We will update payment IDs to 10000000000 i<strong>n the PREPRODUCTION (TEST) environment on Tuesday, 05\/05\/2026.<\/strong><\/p>\n<p><strong>Is there any action required for me?<\/strong><br \/>We kindly ask you to review and <strong>test your reconciliation and integrations in the Preproduction (TEST) environment<\/strong> to identify any potential impact on your business. We recommend taking the below actions as of <strong>Wednesday, 06\/05\/2026:<\/strong><\/p>\n<ul>\n<li>Identify places where PAYID was treated as a string of digits (and not as a numeric value);<\/li>\n<li>Verify assumptions about a fixed PAYID length to uncover validation logic issues;<\/li>\n<li>Investigate if treating PAYID as a string causes errors during database insertion.<\/li>\n<\/ul>\n<p><strong>What about the PRODUCTION environment?<\/strong><br \/>At this stage, no update nor impact in the PRODUCTION environment will take place. We plan to perform the change in Production in <strong>the second half of 2026<\/strong>, and <strong>will inform you on the exact date well in advance.<\/strong><\/p>\n<p>We are informing you and performing the change in Preproduction (TEST) environment already now, so you have enough time to review and test your integrations before moving the change to Production in the second half of 2026<\/p>\n<p><strong>Any questions?<\/strong><br \/>Our teams are here to support you in case of any questions. If you need assistance, please contact us via your usual endpoints putting<strong> &#8220;11-digit PAYID&#8221;<\/strong> in the subject of your message. By this, we will make<br \/>sure that your question is answered by our team as soon as possible.<\/p>\n<p>Thank you for your understanding and cooperation.<\/p>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Important: Upcoming changes to payment ID (PAYID) format We are contacting you with the below information, which we suggest to share with your technical integrator, developer or webmaster Please be informed about an upcoming change to the payment ID (PAYID) format, which is necessary as we are approaching the 10 billionth payment in the Production <a href=\"https:\/\/www.b2u.eu\/en\/psps\/worldline\/payid\/\" class=\"more-link\">&#8230;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":27441,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-29982","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PAYID - www.b2u.eu<\/title>\n<meta name=\"description\" content=\"Worldline is changing the PAYID format. 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