Purchase Order LSMW using BUS2012

Hi,

     I am trying to create a pruchase order with service items using BAPI BUS2012 with method CREATEFROMDATA1

     I can create the purchase order if there are no service items, but with the service items it seems the purchase order fails.

     So the issue would be my field mapping. Please let me know what are the fields that should be used and needed.