Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
It's a bigger issue. The main issue is the following:
When I opened Microsoft Word, I was signed in, but there was a warning icon next to my profile name and picture. When I clicked on it, the notification said. "There's a problem with your account or device. Let's fix it. I pressed the "Continue" button, the app blinked and nothing happened after that.
Due to this problem, I logged into my account online and there were no notifications stating there was a problem. So, I proceeded to open my Word document from the online app. It opened fine, but when I asked for the document to be opened on the desktop app, it asked me to sign in using my email address and (PIN, Password or Code from Email). I tried all three and none of them worked. With every attempt, I received a pop-up notification that said "Access Denied. You do not have access to view this file. Would you like to request for permission on SharePoint?"
BTW, I also submitted this feedback to:
https://feedbackportal.microsoft.com/feedback/idea/e5a57776-0c38-ef11-a296-000d3a044d12