Fat Zebra incident

91 Errors Affecting AMEX Transactions Processed Via FDI XTP

Major Resolved View vendor source →

Fat Zebra experienced a major incident on October 31, 2025 affecting Gateway: AMEX, lasting 1d 1h. The incident has been resolved; the full update timeline is below.

Started
Oct 31, 2025, 03:27 AM UTC
Resolved
Nov 01, 2025, 04:32 AM UTC
Duration
1d 1h
Detected by Pingoru
Oct 31, 2025, 03:27 AM UTC

Affected components

Gateway: AMEX

Update timeline

  1. identified Oct 31, 2025, 03:27 AM UTC

    We are currently investigating a problem with AMEX transactions receiving 91 response codes for some transaction attempts processed via FDI XTP. We are awaiting further information from our upstream provider regarding this incident. Please note, this issue is ONLY affect AMEX transactions, all other card types including Visa and Mastercard are NOT affected. Further updates will be provided as soon as they are available.

  2. resolved Nov 01, 2025, 04:32 AM UTC

    This incident has been resolved.