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Support Article

SSO PRCustom authentication is not working



When attempting to implement Single Sign On through LDAP on WebSphere servers, and are receiving an error: Error authenticating Exampleuser: This user must use external authentication.

Error Messages

PRPC is throwing the error even though the user is setup to use external authentication:

Error authenticating : This user must use internal PegaRULES authentication.

Steps to Reproduce

1. Setup an Operator ID using internal authentication.
2. Validate that the Operator ID is setup correctly by logging in.
3. Update the Operator ID to use External Authentication.
4. Login using SSO.

Root Cause

Enable the debug for the SSO authentication activity, reproduce the problem & check the execution flow using the debug log.


Make sure that right authentication activity rule is called. Add application level diagnostic to the authentication activity if not enough info in PegaRULES log file to identify the problem.

Published June 12, 2015 - Updated October 8, 2020

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