Silly that the error message doesn't convey that, right? I recently got added to a company's Teams account as a guest. I do a bit of software contract work and have used Slack with no issue until now, this is what Teams show me:

- Client says they added me already, but I have no email with an invite. Turns out I didn't have an account that had previously joined Teams with a personal account.

- But even after I created a teams account, due to the order of events (added to corp account as guest, then created a teams account), I still don't have access and need to be readded.

- I can't upload images on groups because I don't have OneDrive access, WTF?

- I cannot download transcripts of meetings I join because I don't have permission.

How bad can a software be? Really?