Log in to Access Manager console as amAdmin. Use the following URL:
http://host.domain:port/Console-Deploy-URI
Click the Identity Management tab, and select your organization.
From the View menu, select Services.
In the navigation frame, under Authentication, click Core.
Add the following to the Pluggable User Name Generator Class attribute: com.iplanet.am.samples.authentication.spi.genuid. UserIDGeneratorSample
Click Save to save the changes.
Log out.