TAD item category not getting billed
I have created two sales orders on the same date. Both the orders are having the same materials, some materils are TAN and some are TAD. One order is getting billed ans the TAN is doing the delivery related billing and the TAD is doing the order related billing but at the same time the other order is only getting billed for the TAN, and the TAD is not getting billed. Pls tell me wat can be the problem?
Thanks in advance.