Solution : https://service.sap.com/sap/support/notes/316435 (SAP Service marketplace login required)
Key words :
transaction se80 -> choose function group mr1m -> choose screens -> 0203, short dump dynpro_field_conversion modify_screen_6310_loop saplmr1m drseg-remng fx015, field list -> modification groups -> display<->change, additional key words mr1m, purchase order price unit, services-related invoice check, dynpro_conversion short dump, field drseg-remng, mng drseg-remng, group 4 drseg-bpmng
Related Notes :
| 491074 | MIRO: Runtime error DYNPRO_FIELD_CONVERSION |
| 445853 | MIR4:more credit memos than invoices for service |
| 216304 | MR1M, MIRO: Destination error |