Solution : https://service.sap.com/sap/support/notes/618969 (SAP Service marketplace login required)
Key words :
start transaction maintain gr/ir clearing account, re_bpmng<0 purchase order item purchase order number', system issues abap runtime error dynpro_field_conversion, maintained purchase order price units, system issues error message, purchase order price units, transaction 'park incoming invoice', transaction 'display invoice document', transaction 'park invoice', transaction 'enter invoice'
Related Notes :
| 491074 | MIRO: Runtime error DYNPRO_FIELD_CONVERSION |