Adding of Group SAP_J2EE_ADMIN fails

hi everybody,

I want my personal portal user to allow configurations in the sld. only the j2ee_admin is able to do that. that user owns a group which is called sap_j2ee_admin. If I try to add this group to my user (I do that in the ume of the portal with the user j2ee_admin), follwing error-message appears:

You are not authorized to assign one or more entities. Perform a new assigned entities search to see the correct status.

how can I grant access to a user for the sld administration?

regards

manu