Loading Sales Order From 3rd Party using oe_order_pub API

Dear All,

We are implementing 3rd Party Sales Force Management System; We are integrating this system with our ORACLE EBS r12.2.2 using oe_order_pub API.

We have many offers and promotions that used in this System. We need to create sales order with Item promotions and Modifiers that is differ from order management.

Example:

We have item X. If customer buy 100 of item X he will take bonus 10 (10%). Can we load both lines:

Item          Quantity      Price

X               100               2.3

X                 10               0

From the 3rd Party system?

We tried to add new line for Item X in the Price List with Price 0 but error appears indicating that there should not be item overlapping.