Disruption with GHEC Team Sync

Severity: Major
Category: Change Process
Service: GitHub

This summary is created by Generative AI and may differ from the actual content.

Overview

GitHub Enterprise Cloud team synchronization was degraded for enterprises using personal accounts from August 13, 2026, 15:31:21 UTC to 18:27:55 UTC. Organization teams experienced synchronization delays of 3 to 13 hours (median 8 hours) when syncing with IdP groups, affecting 2.8% of teams. A temporary change introduced to address a previous issue remained active after it was intended to be removed, causing delays during periods of high volume. The temporary change was removed and additional resources were provisioned to handle increased volume, resolving the incident.

Impact

2.8% of teams experienced delayed access grants or removals for enterprise users, with synchronization delays ranging from 3 to 13 hours (median 8 hours).

Trigger

A temporary change introduced to address a previous issue remained active after it was intended to be removed, causing synchronization delays during periods of high volume.

Detection

Performance degradation was reported for GitHub services, identified at 16:21 UTC. The cause was identified as GHEC Team Sync delays for enterprises with personal accounts when syncing teams to IdP groups.

Resolution

Removed the temporary change that was causing the delays and provisioned additional resources to handle the increased volume. GHEC Team Sync recovered and teams returned to their normal synchronization cadence.

Root Cause

A temporary change introduced to address a previous issue was not removed after it was intended to be, remaining active and causing synchronization delays when the system experienced high volume usage.