Direct Production/Collective Order – Special procurement
Direct Production/ collective order is on of the special procurement types used to do the create the collective order. In this case, you can handle parent order and child order at time. If we release parent order, child orders also released. Child order cost will be incurred to parent order.
Collective order concept been explained in below below blog,
https://blogs.sap.com/2013/03/14/collective-order-or-direct-prodcution-a-scenario-overview/