Populating value in a field of IDOC segment
Need your help to understand the IDoc concept and issues I am facing
I have some information with me -
I have message type DELINS, and a field USR01 of segment E1EDK09.
Want to populate value in USR01, based on some logic.
This is outbound IDOC.
Could you please help me to know
1) What program/transaction will trigger this IDoc to send order to vendor?
2) Where should I write logic to populate values in field USR01 of segment E1EDK09 in DELINS?
Thanks & Regards,