Solution : https://service.sap.com/sap/support/notes/500857 (SAP Service marketplace login required)
Key words :
'authorization groups' input field, user master maintenance, 'authorization groups' field, message w3027 reason, individual abap programs, program attribute field, authorization objects s_develop, call transaction se38, abap program, field p_group
Related Notes :
| 373347 | Authorizations for WEB Reporting |
| 135877 | Security issues in WebReporting Rel 31I |