Problem while reconciling the subcontracting purchase order

Dear Sir,

I am facing a problem while reconciling the subcontracting purchase order.

Scenario : My subcontract PO is for 3 Nos of part A(finished goods) & for which we sent 10 kg of child part B to the

Vendor.

We did the GR partially i.e. 1 Nos at a time against which child part B is consumed as 10/3= 3.333333kg.

After all the part are received, Vendors stock for part B still show 0.00000001kg. Hence we are not able to reconcile the

full quantity.

Is there a process to reconcile the remaining quantity. Please Advice.

Thanks in Advance,

Ritesh.