I'm using this API to add a group
string url = SERVER_BASE + "?action=principal-update&session=" + COOKIE_ID + "&has-children=true&type=group&name=" + trainer.Name + "&principal-id=" + trainer.PrincipleID;
But the group created is Administrator group, not Training group as I want. Would you like to tell me how I create a Training Group using web service?
Retrieving data ...