Subject: Disabled GPT-5 Button and Missing Copilot in Word, Excel, PowerPoint

Hello,

I’m having two issues with Microsoft 365:

A button in my app is disabled without reason and doesn’t activate despite meeting all conditions.
The Copilot (GPT-5) button is missing in Word, Excel, and PowerPoint, even though it should be there.

Environment:

Apps: Word, Excel, PowerPoint
Platform Version: [your Office 365 version]
Development Language: [e.g., JavaScript, C#, VBA]

What I’ve tried:

Checked button events (still inactive).
Cleared cache and reloaded.
Reviewed Copilot docs, but the button is still missing.

Has anyone faced this or have suggestions on how to fix it?

Thanks in advance!