Solution : https://service.sap.com/sap/support/notes/1498228 (SAP Service marketplace login required)
Key words : 
software component   sap_hrcde                      sap hr germany, zfa notifications - pension receipt notifications reason, terms zfa notifications - public sector, german central pension administration office, available028 error opening file &1, relevant hr support package, read file &1024 missing authorization, write file &1025 missing authorization, outgoing zfa notifications, hr support packages
Related Notes : 
       
| 1512444 | Pension rcpt notification: Appl. server file name truncated | 
| 1512393 | ZfA: Application server file name is truncated (part II) | 
| 1506219 | Checkman correction |