SSO on SiteMinder using SAML error message: "**Saml response does not contain group information**"

Hi at all, I have the following problem: We configured SSO with Siteminder using SAML. The problem is that this Siteminder is used only for authentication and not also for profiling so we're not able to configure Splunk roles and when authenticating we receive from Splunk the following error message "**Saml response does not contain group information**". Watching Siteminder's logs we can see that arriving on Splunk the following parameters (after authentication on Siteminder's Authentication Schema): UIDxxxxxxxxxx.xxxxx@xxxx.xxxxxx.com Anyone encountered this problem? Thank you in advance. Bye. Giuseppe