Message SAP WRF_PRC_POHF232 - For item data, you can only partially maintain foreign trade

Diagnosis In the seasonal procurement process in the purchase order manager, inthe item data of the purchase order or the grouped purchase orderdocument, you can only maintain the fields EXART (business type), EXPRF(export/import procedure), HERKL (country of origin), INTCA (ISO code ofcountry), HERKR (region of origin), STAWN (statistical goods number),VERLD (country of dispatch), and INTCA (ISO code of country ofdispatch).