The instructions below are from the Microsoft Office Support page. With Mac users, you will need to remove the license from your device and log in again.

How to download and run the license removal tool

1.  Download the license removal tool.
2. Open the .pkg file from your Mac's Downloads folder.
   1. Note: If you get an "unidentified developer" error, try opening the file by holding Control + clicking the file > Open.
3. Select Continue and follow the prompts in the setup wizard.

4. When you're ready to complete the license removal, select Install. You may need to enter your Mac's local admin account password.

After the tool successfully removes licenses, select Close.

5. Now open any Office app and sign in to activate with the email account associated with your Microsoft 365 for Mac license. If you're troubleshooting an issue, you may need to reinstall Office before signing in.

After you've successfully activated, restart your computer, and you're good to go!

6. Uninstall the License Removal Tool by dragging the Microsoft_Office_License_Removal file from Finder > Downloads to Trash.

If you do not have a Microsoft Office license with CSP or need a password reset for your Microsoft account, please contact the help desk or submit a ticket. You can also search the knowledge base articles on how to set up SSO with Microsoft to your CSP accounts.