Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi, @Matthew Leiner
To help narrow down the issue:
- Is the Microsoft 365 subscription billed directly through Apple, and does it currently show as active under your Apple ID subscriptions?
- When you open Word or Excel, which Microsoft account/email address are you signed in with?
- What is the exact “Unknown Error” message or error code you see when you try to activate?
If you haven't tried it yet, also sign in at https://account.microsoft.com/services using the Microsoft account shown inside Word or Excel and check whether Microsoft 365 appears there.
This will help determine whether the problem is with the Apple subscription, the Microsoft account being used in Office, or the Office activation itself.
Click "Add comment" to let me know.
Thanks!