Solution : https://service.sap.com/sap/support/notes/352155 (SAP Service marketplace login required)
Key words : 
order settlement travel expenses settlements additional key words pmco, maintenance orders / service orders, excessive actual costs originate, restructure table pmco, symptom actual costs, actual costs, cost overview, information system, program error, solution implement
Related Notes : 
       
| 335028 | PMCO restructure: New program version | 
| 330958 | |
| 310726 | Reconfiguring of information structures | 
| 112841 | Steps to Regenerate PMCO & PMIS files |