Sezzle experienced a major incident on October 19, 2026 affecting Sezzle Gateway API and Sezzle Core API, lasting 32m. The incident has been resolved; the full update timeline is below.
Affected components
Sezzle Gateway APISezzle Core API
Update timeline
- investigating Oct 19, 2026, 12:13 AM UTC
We are experiencing elevated error rates on our Gateway and core APIs.
- investigating Oct 19, 2026, 12:19 AM UTC
We are continuing to investigate this issue.
- identified Oct 19, 2026, 12:19 AM UTC
The issue has been identified and a fix is being implemented.
- monitoring Oct 19, 2026, 12:19 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Oct 19, 2026, 12:45 AM UTC
This incident has been resolved.