BREAKING
Microsoft Fixes Missing Copilot Button
How The Bug Surfaced
1Update to build 20026.20182+
↓
2Ribbon button disappears
↓
3Nav icon vanishes
↓
4Command greyed out
Who Was Affected
Copilot Chat (Basic)Affected
●Included in M365 subscription
●Web + uploaded files
●Bug removed the button
M365 Copilot (Premium)Not affected
●Add-on ~$30/user/month
●Full organizational data
●Button stayed intact
Root Cause: License Validation
Server-Side Fix, No Client Update
1Server-side fix applied
↓
2Restart or update Outlook
↓
3Copilot restored
Resolved June 30, 2026
AI NEWS BLITZ
Microsoft has fixed a bug that made the Copilot button vanish in classic Outlook.