Solution : https://service.sap.com/sap/support/notes/325759 (SAP Service marketplace login required)
Key words :
additional key words schedule manager, attached source code enhancement, symptom schedule manager, period-end closing, schedule manager, direct start, process definition, authority-check, missing function, calling user
Related Notes :
538149 | No authorization check for transactions |
35612 | Authorization check for CALL TRANSACTION |