When I create a sales order, the system suggest me to split the delivery because of the ATP. But there are enough stock for this delivery.
Then I checked the ATP,find that a return order which had been posted affect the supply and requirement. however, other materials in the same return order don't have this issue. I have no idea about why this return requirement be created.
I use DN schedule line type and KSL requirement type and didn't change the 30 class.
I think set the flag of "requirements transfer" is ok in return order.
As I know,when a return order created, supply is added, when it posted,stock is added. But in this case, a minus amout displayed in the list even through it has been posted.
The thing I could not understand is that why this material triggers a
requirement but other materials in the same return order with the same
requirement type don't.
please see ATP analysis in screen shot below.