Troubleshooting CA eTrust SiteMinder single sign-on configuration

The Register Project Area task in the IBM® Case Manager configuration tool fails and displays an error message stating that an error occurred while running Register Target Environment.

Symptoms

While completing configuration of IBM Case Manager with CA eTrust SiteMinder single sign-on, you receive an error message that states the following:
Starting to run Register Target Environment

Register Target Environment 
Finished running Register Target Environment
An error occurred while running Register Target Environment
The task failed because of the following error: Server returned HTTP response code: 500 for URL: 

Causes

The maximum URL length allowed by the SiteMinder Web Agent is not long enough. The URL size that the IBM Case Manager configuration tool is trying to pass into the SiteMinder Policy Server via the SiteMinder Web Agent is larger than the default SiteMinder agent configuration MaxUrlSize of 4097 bytes.

Resolving the problem

In the SiteMinder Policy Server, try increasing the MaxURLSize parameter to 5120 in the SiteMinder Web Agent. If the error continues to occur, try increasing the MaxURLSize parameter to 8192 or higher.