Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello
You didn't indicate what system you are using it on. Is it Windows 11, or macOS?
If it is Win11, in the apps, like Word, or Excel, go to Files > Accounts, and click on Update license. Log in if prompted.. See if that helps.
If it is macOS, it can be a bit different. What's your macOS version?