SAP Message C2201 - Collective order (assembly orders) not completely read

Diagnosis
You have made changes in an assembly order that are relevant tocosting. To pass on the manufacturing costs of the collective ordercorrectly to the sales order, all orders in the collective order mustbe costed.
Not all orders have been read and costed.

What_to_do
To prevent incorrect costs being passed to the sales order, read thethe entire collective order.