Purchase order - Net price change not reflected in ERP when discount is there

[wojciech_z]

Hello SAP Folks,

I have struggled with the process of Net Price update for Changed POs coming from Ariba to SAP ERP.

When discount field is used while PO creation, system is not able to update price afterwards, in case of Net Price change for changed PO.

The update of discount value is flowing correctly and is passed to correct condition in condition tab.

Net Price field itself is greyed out when any condition like discount is added.

In condition tab PBXX condition is still editable on ERP side but Ariba still is not able to update the price.

We need to be able to update Net Price also.

Example:

We order 1pc with price 100EUR

We got 5EUR discount and this is correctly maintained in Ariba and sent to SAP

Then due to business actions the price must be changed to 98EUR, discount should stay 5EUR.

This changed from 100EUR to 98EUR is not reflected on ERP side also no error message.

I would like to understand how the system should be set to reflect this change or how this is controlled?

Is there any standard solution or requires some custom mapping?