What causes AADSTS501632?

Authentication configuration issue. Token validation failure

How do I fix AADSTS501632?

Step 1: Contact your Azure AD administrator to review and fix the configuration. Step 2: Search for error code in Microsoft documentation for specific guidance

Low severityauthentication

Power BI Refresh Error:
AADSTS501632

What does this error mean?

Regular expression replacement for claims transformation has too many substitution parameters in the replacement input parameter. Please contact your admin to fix the configuration.

Common causes

1Authentication configuration issue
2Token validation failure

How to fix it

1Step 1: Contact your Azure AD administrator to review and fix the configuration
2Step 2: Search for error code in Microsoft documentation for specific guidance

Frequently asked questions

What does AADSTS501632 mean?

Regular expression replacement for claims transformation has too many substitution parameters in the replacement input parameter. Please contact your admin to fix the configuration.

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.