Same day how to use multiple prices in sales order - without using discount and surcharge modifiers

Hi,

The business scenario is explained below.

We have received the orders from customers as like below for chicken products.

Customer A - 1000 Kilogram

Customer B - 2000 Kilogram

Customer C - 3000 Kilogram

There is no fixed price for chicken and everyday chicken price will be vary and customer to customer.

we will charge like below.

Customer A will be charged as Rs.100 per Kilogram, Customer B Rs.105 per Kilogram, Customer C Rs.110 per Kilogram.

How to book the sales order in oracle without using any advanced pricing modifier.

Our organization structure is, Chicken inventory is available in inventory organization and one single pricelist is now used for one organization to book the sales orders.