How to fix AADSTS90033: A transient error has occurred. Please try again

Another day at the office, I was unable to signin. Sorry, we’re having trouble sigining you in. AADSTS90033: A transient error has occurred. Please try again

AADSTS90033 transient error

In some other cases, users faced AADSTS90033 MsodsServiceUnavailable – The Microsoft Online Directory Service (MSODS) is not available.

How to fix AADSTS90033

Whenever you face this error, don’t go troubleshooting and digging into the event viewer logs right away. The error is 99 out of 100 caused by failing Azure services. Technically, there’s nothing you can do. However, it’s important to know Microsoft acknowledged the issue.

First, check the Azure Service Status on https://status.azure.com/en-us/status
There a good chance Azure Active Directory is facing issues with authentication.

Next, log in to your Azure Portal (assuming you’re an Azure administrator) and navigate to the Service Health blade. This page shows the health issues specific to your tenant. Another site to monitor is the Office 365 Health page

If the issue is not acknowledged (yet), submit a support ticket from the Microsoft 365 admin center:

  1. Go to Health -> Service Health
  2. Click + Report an issue
  3. Fill in the fields

Workaround for AADSTS90033

Disruptions often have an impact on a limited number of services and apps. In case of error AADSTS90033 in Microsoft Teams (other than Teams high cpu), or Office 365 desktop applications in general, you can try to use the web version

MS Outlook: https://outlook.office.com/mail/
MS Teams: https://teams.microsoft.com/
Other apps: https://www.office.com/

In case of Enterprise Apps relying on SAML/SSO, there’s not much you can do. Apart from informing your users.

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