Solution : https://service.sap.com/sap/support/notes/323152 (SAP Service marketplace login required)
Key words :
additional key words header data, transaction smod -> customer enhancement sapl2012, include ci_ekkodb andstructure bapi_te_mepoheaderx, include ci_ekpodb andstructure bapi_te_mepoitemx, include ci_cobl andstructure bapi_te_mepoaccountingx, account assignment data, general bapi rules, interval frequencies set, enjoy purchase order, include ci_ekkodbx
Related Notes :
489310 | BAPI_PO_CREATE: PO_HEADER in user exit "002" |
441907 | BAPI_PO_CHANGE: Not transferred customer enhancements |
410491 | BAPI_PO_CREATE1: Customer enhancements incorrct from 2. item |
390742 | Customer enhancements not transferred |
356002 | Enjoy BAPI: Transferred delivery date ignored |
351262 | Enjoy BAPI: error handling. |