IDoc-Invoic02-Outbound, PO4 segment-Packaging of item,PO401-first Level of pack,PO414-smaller container with the case.

Hi Experts!

As there is no Segment in Idoc INVOIC02 which holds the information of the packaging and inner pack details, you have to go for an user exit. But my question is, how does this information has to be put in the Involve/Billing document for it to be carried to the custom IDoc(IDoc Extension)?

Thank you,

Chekri