Postmortem for Input table edit failed on on OAuth connections migrated from non-OAuth

RCA - Input table edit failed on on OAuth connections migrated from non-OAuth Incident Start Time: 2026-09-10 11:41 UTC Incident End Time: 2026-09-12 00:16 Summary Input tables and materializations on connections moved from non-OAuth to OAuth failed with write-back errors. Input tables and materializations created after the migration were not affected. Timeline Time (UTC) Event 2026-07-27 A product update to OAuth connection editing is deployed, after which customers who move from non-OAuth to OAuth warehouse connections would experience materialization and IT edit failures.