we have to enlarged purchase order item with the customer field in table EKPO. Field is now ready for input, it was created by our ABAP guru, but we are not able to add and change the features via customizing "Define Screen layout at Document Level". Is any standard customizing method how add new fied to Field selection Group for purchase order and subsequently to Field selection key?
I found t-code OMSR but It works only material master record. Do you know some equivalent for purchase order?
Thanks for you advice.