Discount on invoice

Dear All,

We are using ORACLE EBS R12.1.2. DB: 11.1.0.7.

Modules: Order Management, Advanced Pricing, Landed Cost, Cost Management, Inventory, AR, GL, Purchasing and AP.

Financial AP super user is asking how to solve many issues in ORACLE Payables.

I will start with the following:

1. How can user match PO receipt with invoice having discount.

  Elaboration:

After receiving PO. Supplier send the invoice with discount on the invoice. The discount on the same invoice not by different invoice.

PO with amount of 1000$. Invoice with 900 (Invoice amount for PO is 1000. Discount amount 100).

Now how can he match the invoice with PO receipt. Since invoice amount is not equal to the PO receipt amount?