getting object error in creating Role group

Hi there - I am creating a group user in F5 System ›› Users : Remote Role Groups ›› New Remote Role Group... Name: AS_IT_ITS_F5_UserMgr attribute string is memberOF=CN=AS_IT_ITS_F5_UserMgr,OU=F5,OU=Security Groups,OU=GroupFunctions,DC=xsdagoup,DC=com Rights: User Manager I get following error msg when I create the group. Can someplease help.

01070088:3: The requested object name (/Common/AS_IT_ITS_F5_UserMgr) is invalid

Regards,