Issue of short closed sub-con orders

Hello,

I have an issue on the subject matter.

Scenario is:

Purchase SA - xxx SA type : Sub con

Purchase Part: A

BOM: A --> B

(To procure A from the sub con I am sending the material B to him.)

I have put initial schedule of 100 nos. for agreement xx using transaction ME38.

I sent material B qty. 100 nos. to sub con.

I received (GR) 50 nos. of material A

Later through a "Z" development I have changed the schedule line qty. from 100 to 50. ( Delivered Qty = Scheduled Qty.)

But in the background the requirment of B is not cleared.

And thus after each MRP run the system shows subsequent requirement of A in stock /requirment list of B and qty is 100 nos.

After this procedure, I have agregated the schedule lines. But the MD04 screen shows same old sch. line no. as sub.req.

I disagregated the lines but it is giving new number.

Since I am transferring this requirement of B in to Product Costing, the costing is calculating excess activity unnecessarily.

Can anyone please help, how do I remove this requirement from the system?

Regards,

Rahul Puranik.