When I click on the XS button in Banner Administrative I get the following error:  "Permission denied to application B-G-ID.  You do not have access permission to this application."

This error means you have tried to access BDMS from a form in Banner Administrative that is linked to an application to which you do not have access.  For example, if you click on the XS button from the Main Menu in Banner Administrative it will load the B-G-ID application.  If you do not have access to the B-G-ID application then you will get this error.  You must be on a form that is linked to an application in which you have access.