Below is the breakdown of the issue I have.
1. Incoterms and Payment Terms are missing. Although it is maintained in the customer master which it should be copied over but it does not. Even when I key it in manually and save it, the incompletion log prompts this field in not entered.
2. I manage to PGI and maintained the Foreign Trade/Customs because this is an inter company sale. When I create the invoice, I get an error saying "General business data is missing".