Later supplies used to meet earlier demands in unconstrained supply plan when past due

Summary:

Due to backward scheduling for a higher level assembly demand which is past due the requirement date for a component is the same and supply plan(unconstrained) is randomly pegging future supplies to meet this component demand originating from multiple past due demands.

Content (required):

We have two SOs for a certain assembly A: SO1 with past due schedule ship date of 17-Nov-22 and SO2 with past due schedule ship date of 30-Nov-22 .

The schedule ship dates being past due ,the suggested due date for all three is the plan run date in the supply plan.

The assembly needs a component C1 which has two POs : PO1 with a future date of 10-Apr-23 and PO2 with a future date of 10-Feb-23.