This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Hi everyone,
one of my clients is having trouble with their Teams on Mac. For a while now, whenever they open their Teams, they get an error, stating that their account does not exist in the necessary Tenant. But i have checked in that Tenant, and they do exist there as a guest-user.
I also have already tried to log them out and back in, and reinstalled their Teams-Application.
This error occurs both in the old an the new app, as well as the browser-application.
Can anyone provide me with a solution, as to how i can fix their issue?
Thanks!
Request Id: e9925ee1-a22f-4c14-9c6b-eb1bd9fa3400
Correiation ld: 372b669e-f243-4e85-86cc-d441f765239d
Timestamp: 2024-06-12T07:23:55Z
AADSTS50020: User account '----------' from identity provider '----------' does not exist in tenant '----------' and cannot access the application '5e3ce6c0-2b1f-4285-8d4b-75ee78787346'(Microsoft Teams Web Client) in that tenant. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account.
Using Microsoft Teams on macOS, including installation, features, and compatibility
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
I have tried this before posting here, but part of the Problem is that they are already part of that tenant. Yet Teams throws this message as if they were not. I also double-checked their email address to confirm it is the correct one, which it is.
I'm at a bit of a loss as to how this happens.
Hello, I'm Jen, I'm happy to help you today.
To resolve this issue, you need to add the user account as an external user in the tenant. This can be done by following these steps:
Log in to the Azure portal using an account that has the necessary permissions to add external users. Navigate to the Azure Active Directory blade. Click on the 'Users' blade. Click on the 'New guest user' button. Fill in the required details for the new user and invite them to the tenant. Once the user has accepted the invitation and their account has been created in the tenant, they should be able to access the application using their account. Note that adding external users to a tenant may have certain security and compliance implications, so you should ensure that you have the necessary policies and procedures in place to manage external access to your tenant and applications.
or
please follow the outlined steps below:
Visit https://myaccount.microsoft.com/organizations Select 'Organizations' from the options on the left-hand side. Your "Home organization and other organizations you collaborate with" will be displayed. Click on the 'Leave' button next to the tenant/organization you wish to depart from. Once you click leave button, you will be kicked out from that organization and please note that you will be not able to leave from your home organization.
Let us know how it goes, we're here to help you further if needed. Jen A.
Please do re-add them from scratch by removing and re-adding them and see if that will refresh the system that might be a temporary sync issue.