Teams on Desktop request to sign-in returns an error message (message attached)

Question

Teams on Desktop request to sign-in returns an error message (message attached)

M Sasakura 0

Trying to log into the desktop version of Teams. While the web version work fine, logging into the desktop version results in the following error message (attached). Trying to determine what exactly to do to move forward with the use of the desktop version of Teams.

MS Teams Error Message.png

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Answer 1

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Answer 2

EmilyS_726 34,280 Volunteer Moderator

When you signed in on the web, did you use the yahoo.com address to sign in? If so, do you recall seeing a pop up asking you to choose signing into your personal account, or a work/school account?

Or did you use an organization account to sign in on the web?

According to the current error, it is saying you are trying to use an yahoo.com account to sign into an organization's environment (WSP O365), and they cannot find your yahoo.com account as their organization guest/visitor, hence they rejected your log in request.

This is why I am trying to understand what you are signing into with what account when you use the web.

M Sasakura 0 Reputation points

2026-11-12T03:41:48.5333333+00:00

I don't remember seeing a pop-up asking me to choose to sign into using my personal account or a work/school account. I use the yahoo.com (e.g., personal) account to sign in since this is not a work/school computer.
M Sasakura 0 Reputation points

2026-11-12T03:42:09.23+00:00

I don't remember seeing a pop-up asking me to choose to sign into using my personal account or a work/school account. I use the yahoo.com (e.g., personal) account to sign in since this is not a work/school computer.
EmilyS_726 34,280 Reputation points Volunteer Moderator

2026-11-12T03:54:15.9+00:00

So, on the web it sounds like you were signing into your personal account directly.

But in the app it sounds like you were using your personal account to sign into an organization.

Think of it like you have an ID. You can use the ID to access your native home environment. But if your ID is registered as a visitor/guest at an office building, you can also use it to log into an organization tenant (WSP O365). So, in your case, the organization tenant doesn't recognize you.

My question is, are you signing into the app directly, or are you trying to sign in using a meeting link you were invited to by this organization?
M Sasakura 0 Reputation points

2026-11-12T04:01:41.2066667+00:00

I am trying to directly sign-in to the desktop app using my personal sign-in account (@yahoo.com) and not via a meeting link. It used to work with no problem and I was ignoring it for a bit, but realized recently that it's annoying to keep accessing Teams via the web and I'd like to use (e.g., access) my desktop Teams app again. Hopefully, that's clear...