filling up segments of Idoc of Invoice List

Hi!

Invoices and Invoice List are beeing created... everything would be fine, but some fields are missing in the Invoice List while existing in Invoices.

I guess I need to find the code where these fields are filled up for Invoices and to add this code to appropriate place for Invoice List. How to do this?

I think that needed segments are existing for Invoice List, just not filled up...

By the way, how to find out Idoc number of Invoice List? If I have it, I could compare segments with Idocs of Invoices.

Any ideas?

Will reward,

Mindaugas.