Platform Notice: Cloud Only - This article only applies to Atlassian products on the cloud platform.

Summary

When you or one of your users attempts to login via SAML SSO, they receive the following error message:

"Hmm... We're having trouble logging you in. Single sign-on is no longer available for this account."

Cause

There are currently two potential causes for this issue:

SAML SSO is a feature of Atlassian Access. Without an active subscription to Atlassian Access, such as in the event of a billing lapse, you or one of your users may see this error.
SAML SSO is enforced via authentication policies on subsets of your managed Atlassian accounts. This error indicates that the user that is trying to login via SAML SSO does not have SAML SSO enforced on their account via authentication policies.

You can check your subscription to verify that it is still current by following instructions here.

You can edit your authentication policies and their membership by following instructions here.