Optum experienced a major incident on January 28, 2026, lasting 1h 26m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Jan 28, 2026, 01:37 PM UTC
We are aware of an issue impacting XMLAPI calls to the Clinical Exchange application. Our development teams are engaged, and we are reviewing this issue as a priority. INC/CSA/Ref #INC48061160
- monitoring Jan 28, 2026, 02:46 PM UTC
Development identified and fixed the issue impacting XMLAPI access. We will continue to monitor the system. INC/CSA/Ref #INC48061160
- resolved Jan 28, 2026, 03:04 PM UTC
The XMLAPI access issue has been resolved. We have confirmed that users are now able to access the system without error. We will continue to monitor the system. INC/CSA/Ref # INC48061160