@Ajeet Singh - That would appear to be the issue you are hitting. The Pivotal SSO Service runs on top of UAA, thus because of the limitation mentioned in the Github issue, you're going to see this error. I don't think there's too much you can do at this point, short of not use the SSO service in this way. That and update the Github issue. Indicating interest on the Github issue will help our engineering team to prioritize. If you are a paid customer you can also talk to your Pivotal Platform Architect about this issue. He or she can also assist in getting this issue prioritized with our engineering team.