Solution : https://service.sap.com/sap/support/notes/386556 (SAP Service marketplace login required)
Key words : 
ps-cash management, bad performance occurs, terms ps-cash, source code corrections, reversal reason, program error, solution implement, connection, note 359701, prerequisites
Related Notes : 
       
| 380897 | (MM) Deleting parked LIV: Performance | 
| 378178 | (FI) Changing parked document as regards posting year | 
| 359701 | (FI+MM) Parking invoice or its deletion |