Solution : https://service.sap.com/sap/support/notes/666888 (SAP Service marketplace login required)
Key words :
function module bapi_po_change, implementing badi me_process_po_cust, attached program corrections, mepo1319-licha reason, purchase order item, mepo1319-lichamepo1319-charg, purchase order, mepo1319-charg, eket-licha, program error
Related Notes :
| 637467 | ME_PROCESS_PO_CUST: Endless loop due to field change |
| 628141 | BADI ME_PROCESS_PO_CUST ends in endless loop |