User of the Search UI Has no RFC Authorization 
The user interface reports the following error message:
User <userid> has no RFC authorization for function group SYST.
This may be due to the fact that the user has not been assigned the SAP_ESH_RFC_ENDUSER role in the ABAP system.
Make sure the user is assigned to the SAP_ESH_RFC_ENDUSER role (transaction PFCG).