Unable to login using Microsoft SSO with error "Sorry, we're having trouble signing you in."
Platform Notice: Cloud Only - This article only applies to Atlassian products on the cloud platform.
Summary
When a user attempts to log in to their Atlassian account, they are redirected to the Microsoft login screen and encounter the following error message:
Sorry, but we're having trouble signing you in. (...) Your administrator has configured the application Atlassian Cloud ('xxxxxx-xxxx-xxxx-xxxxx-xxxxxx') to block users unless they are specifically granted ('assigned') access to the application.
Diagnosis
Assign the user to the authentication policy that enforces SAML SSO.
Don't assign the user to the Atlassian Cloud app in Microsoft Entra ID.
Cause
SAML SSO login is enforced, but the user is not assigned in Microsoft Entra ID
This issue arises when user login is enforced with SAML SSO, but the user has not been assigned to the Atlassian Cloud app in Microsoft Entra ID.
Solution
To fix the issue, assign the user to the Atlassian Cloud app in Microsoft Entra ID.
A temporary solution is to unassign the user from the authentication policy that enforces SAML SSO.
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