I have a problem (ECC 6.0).
After saving a sales order, I'm not able to change the item category for the added item after saving the document. It's some kind of service material (DIEN) to charge labour to the customer.
I found that if I maintain the MRP3 view with the strategy group 10, I'm able to change the category after saving. But as the MRP views are disabled for service materials (DIEN) and there's no need for MRP for service materials, I don't get rid of the problem.
Please help me to solve that problem.