Updating Custom fields in VL01N using BAPI
I have to create a delivery for a particular Sales Order using BAPI. The Problem is every standard fields could be updated using BAPI, but some of the fields present in header details of VL01N are customised which I don't know how to update using BAPI. I need to update those custom fields using BAPI.
Kindly help me in this regard.
Thanks & Regards,