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Unable to login to Nintex Workflow dashboard after Nintex SSO Upgrade with Error Forbidden Code 305

  • August 19, 2025
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Topic
After upgrading Nintex SSO, refer to this article: 

 

The user is unable to log in with the following error message shown:

 

Instructions 
1. Navigate to Entra SAML Single Sign On for the Nintex Workflow (NAC) and click on Attribute and Claims (Edit):

2. Click on each line of the Additional Claim Names (the one that is highlighted red below):

 

3. Verify it has the value as per the following:

 

Name: emailaddress
Namespace: http://schemas.xmlsoap.org/ws/2005/05/identity/claims

Name: givenname
Namespace: http://schemas.xmlsoap.org/ws/2005/05/identity/claims

Name: name
Namespace: http://schemas.xmlsoap.org/ws/2005/05/identity/claims

Name: surname
Namespace: http://schemas.xmlsoap.org/ws/2005/05/identity/claims

 

All the values in the Namespace must be only :  http://schemas.xmlsoap.org/ws/2005/05/identity/claims

Make sure the rest of the 3 attributes also has the same values: