Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Appreciate you sharing the details!
If you're the Microsoft 365 Family subscription owner and the other family members are able to use Office without any issues, it's unlikely that the purchase itself is the problem. Also, because the subscription is owned by you, she will not see the purchase or subscription under her own Microsoft account—that's expected. She only needs to be signed in with the Microsoft account that accepted your family invitation.
Here are a few more things you and her check:
- Verify your subscription isn't at its sharing limit. Microsoft 365 Family can be shared with up to five other people (six users total, including the owner). Since your other family members are working normally, this is probably not the issue, but it's worth confirming. You can check it at https://account.microsoft.com/services
- Confirm she's signed in with the correct Microsoft account. If she has multiple Microsoft accounts, make sure she's using the one that accepted your family invitation.
- Sign out of all Office apps, then sign back in. In Word, go to File > Account, sign out of every account listed, close all Office apps, reopen Word, and sign back in using the correct Microsoft account. This often refreshes the licensing information. (This most of the time works for me!)
- Remove and re-add her to your Microsoft 365 Family subscription. From your Microsoft account, remove her from the family group, then send a new invitation. After she accepts it, wait a few minutes before signing back into Office.
- Check whether Office shows as activated. In Word, go to File > Account and see if there's an option to Activate Office or Switch Account. If there is, try activating it with the account that accepted the family invitation.