Data Protection Central 19.8: Single Sign On redirect does not finish with the message "Invalid parameter: redirect_uri"

Summary: In Data Protection Central (DPC) 19.8, when using Single Sign On (SSO) and clicking "Avamar UI" or other UI link, redirection does not finish. DPC UI displays the message: Invalid parameter: redirect_uri ...

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Symptoms

In DPC 19.8, when SSO is configured and you click Avamar UI or another UI link, the redirection does not finish.

The DPC UI shows the error message:  
Invalid parameter : redirect_uri 
 
Screenshot of Invalid Parameter in DPC UI
Figure 1: Screenshot of Invalid Parameter in DPC UI
 

Cause

The hostname entered in System Management for Avamar is case-sensitive. Usually, it is in UPPERCASE LETTERS.
 

Screenshot of Connection information showing uppercase letters
Figure 2: Screenshot of Connection information showing uppercase letters

Resolution

To address this issue:

  1. Delete the affected system from System Management as seen in this screenshot: 
Screenshot of System Management screen with deletion of affected system
Figure 3: Screenshot of System Management screen with deletion of affected system
  1. Add the affected system back into System Management, this time using lowercase name for the hostname field.
Screenshot of Add affected system back in
Figure 4: Screenshot of Add affected system back in. 
  1. Once the system is added back in, launch the Avamar UI to test SSO.
Article Properties
Article Number: 000212456
Article Type: Solution
Last Modified: 13 يناير 2026
Version:  4
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