What causes AADSTS50126?

Malformed or invalid token/credential value

How do I fix AADSTS50126?

Step 1: Check the Azure AD error lookup at login.microsoftonline.com/error for this code. Step 2: Review your application's authentication configuration in Azure portal. Step 3: Contact your Azure AD administrator if the issue persists

High severityauthentication

Power BI Refresh Error:
AADSTS50126

What does this error mean?

Error validating credentials due to invalid username or password. The user didn't enter the right credentials. Expect to see some number of these errors in your logs due to users making mistakes.

Common causes

1Malformed or invalid token/credential value

How to fix it

1Step 1: Check the Azure AD error lookup at login.microsoftonline.com/error for this code
2Step 2: Review your application's authentication configuration in Azure portal
3Step 3: Contact your Azure AD administrator if the issue persists

Frequently asked questions

What does AADSTS50126 mean?

Error validating credentials due to invalid username or password. The user didn't enter the right credentials. Expect to see some number of these errors in your logs due to users making mistakes.

How do I fix this error?

Check your application registration, token configuration, and user permissions in the Azure portal. Review Conditional Access policies if the error is policy-related.