Are you still using the classic #AIP client AddIn to let your #M365 Users manage #Purview Sensitivity Label Assignments?

Then you should be aware of the upcoming change #MC478692.
The classic AddIn will be disabled with that change.

If you have additionally disabled the modern office integration before, your users will lose the to view protected content and the ability to manage labels until you enable one or the other option again.

Change Note:
https://admin.microsoft.com/#/MessageCenter/:/messages/MC47869

Blog with more information:
https://techcommunity.microsoft.com/t5/security-compliance-and-identity/from-bolt-on-to-built-in-information-protection-in-microsoft-365/ba-p/3647524

#Microsoft #AIP #Purview