Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
A redeemed Office purchase is tied to the Microsoft account used during redemption. There is no self-service method in the provided guidance to move that Office 2024 purchase to a different Microsoft account.
To get Word and Excel working on the MacBook Air:
- Confirm which Microsoft account currently has the Office 2024 purchase.
- Sign in to the Microsoft account that was used during redemption.
- If the product key says it was already used, that means it has already been redeemed and the key is no longer needed.
- Install from the account’s Services and subscriptions page at account.microsoft.com.
- If the purchase was redeemed to the wrong Microsoft account and needs to be moved, contact Microsoft Support.
- The provided guidance states that when Office is associated with someone else’s account, support should be contacted and proof of purchase should be available.
- Remove the old Mac license state before signing in again.
- Run the License Removal Tool for Mac: Download and run the License Removal Tool.
- Then open Word or Excel and sign in with the Microsoft account that should activate Office.
- Check whether the apps came from the Mac App Store.
- Mac App Store Office apps are not compatible with Office 2019 licenses.
- The Mac App Store versions of Word, Excel, and PowerPoint require a Microsoft 365 subscription to activate.
- If those apps were installed from the Mac App Store, uninstall them and reinstall Office directly from the Microsoft account that holds the Office 2024 purchase.
- If the “Office 2019 is not supported” message still appears, it usually indicates an older Office license is still being detected on the Mac.
- Removing the existing Office license and then signing in with the account associated with the new Office purchase is the supported cleanup path in the provided guidance.
References:
- Where to enter your Office product key | Microsoft Support
- Why do I need an account to sign in to Microsoft 365 or Office? | Microsoft Support
- End of support for Office 2019 for Mac | Microsoft Support
- Microsoft Office and the Mac App Store | Microsoft Support
- installed office product key on wrong account - Microsoft Q&A
- Problem with office 365 - Microsoft Q&A