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 |