no EAN code on Standard Order (created by incoming IDoc)

Hi

incoming IDoc has just been created. In segment E1EDP19 003 exist right EAN number, but on standard order created via this IDoc automatically EAN code field isn't filled. When I'm creating the same OR with the same data manually everything is okey (EAN code is in the right place). However when I'm reprocessing IDoc manually (in WE19) creating another, identical order then EAN code is also appearing on every item.

Any ideas what can be the reason of this problem?

Cheers

Ashoka