REST API - Service Degradation

Update timeline

1. investigating Mar 15, 2026, 09:18 PM UTC

   Cybersource is aware of an issue that is currently affecting some merchants using REST API. We are investigating the cause and working urgently to resolve the issue. Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures. As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved. Reported Start Time: 13 March 2026 Next Update: Within 60 minutes. We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated. Please do not hesitate to contact the Cybersource support team if you have any questions or concerns. Cybersource Support Center Incident #: TBD

2. investigating Mar 15, 2026, 11:29 PM UTC

   We continue to investigate the cause and working urgently to resolve the issue. Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures. As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved. Reported Start Time: 13 March 2026 Next Update: As current status changes. We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated. Please do not hesitate to contact the Cybersource support team if you have any questions or concerns. Cybersource Support Center Incident #:TBD

3. monitoring Mar 16, 2026, 02:26 PM UTC

   A fix has been implemented and is currently being rolled out through production. We are monitoring closely as the implementation completes. Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures. As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved. Reported Start Time: 13 March 2026 Next Update: As current status changes. We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated. Please do not hesitate to contact the Cybersource support team if you have any questions or concerns. Cybersource Support Center Incident #:EPS-36872

4. resolved Mar 16, 2026, 08:23 PM UTC

   The issue affecting the REST API Service has now been fully resolved. Cybersource is conducting an internal review of the events to mitigate future occurrences. Reported Start Time:13 March 2026 Reported End Time: 16 March 2026 at ~17:47 GMT Impact: Customers are now able to use the REST API Service as normal. Next Update: No further updates, issue resolved. Please do not hesitate to contact the Cybersource support team if you have any questions or concerns. Cybersource Support Center Incident #: EPS-36872

5. postmortem Mar 18, 2026, 11:37 AM UTC

   Clients and merchants can access the Post Incident Report with their Support Center login credentials at the following link [Post Incident Report](https://support.visaacceptance.com/knowledgebase/Knowledgearticle/?code=KA-10327)