> For the complete documentation index, see [llms.txt](https://helpcenter.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpcenter.verifone.com/cardinal-commerce-infrastructure-change.md). # Cardinal Commerce Infrastructure Change Please be aware of upcoming infrastructure changes being made by Cardinal Commerce that may require action on your part. Cardinal Commerce are migrating their endpoints to new IP addresses. If your integration connects directly to Cardinal (sometimes referred to as a Songbird integration) and you use IP allow-listing in your firewall or network configuration, you will need to add Cardinal's new IP addresses before their cutover date to avoid disruption to your 3D Secure processing. Cardinal have published full details of the new IP addresses and the change here:\ [https://cardinalcommercecorporation.statuspage.io/incidents/6x4q77c2yg33](https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcardinalcommercecorporation.statuspage.io%2Fincidents%2F6x4q77c2yg33\&data=05%7C02%7CCharles_W3%40VERIFONE.com%7Ca8e355094c014f1bcfd008de7bbe2790%7C611a22d68c40495884e3ce47d8205d98%7C0%7C0%7C639084253889114028%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\&sdata=j%2FPURVQHC9lEtzSOcfOL0Sf5%2BANAk3jI8VMpZ6rGgCw%3D\&reserved=0) Planned testing schedule (all times approximate, starting \~10:00 AM ET / 15:00 UTC):\ • 11 March – Flash test (\~15 minutes)\ • 18 March – Medium duration test (\~30 minutes)\ • 25 March – Extended test (\~60 minutes)\ • April – Permanent DNS cutover in production If you do not connect directly to Cardinal, or do not use IP allow-listing, no action is needed. If you're unsure whether this affects you, please share this email with your technical or network team. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://helpcenter.verifone.com/cardinal-commerce-infrastructure-change.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.