For a quick setup in a test or demo environment, assign template role /REM/REM_ALL to all users.
Additionally, assign SAP standard role SAP_BC_BATCH_ADMIN to allow execution of jobs in the background.
If you use the SQVI Query Viewer to define new remQ checks, additional authorizations for table access are required. Please check SAP note 1434284 (Authorization concept for generic table access) and the notes linked there.
