Can we create one payment cheque for 2 different supplier sites with 2 different procurement BUs

Summary:

We have three Business Units (BUs):

• BU_1
• BU_2
• BU_HQ

BU_1 and BU_2 are procurement BUs.
Since there are two separate procurement BUs, we defined the supplier with two sites, one for each procurement BU.

Our requirement is to generate one payment and one cheque for two Purchase Orders (POs) for the same supplier. However, these POs belong to different procurement BUs: one in BU_1 and the other in BU_2.

We referred to the document "Multi_BU_Single_Cheque" (attached), which explains how to achieve this when there is one supplier site and one procurement BU. Unfortunately, this does not cover our case, as we have two supplier sites and two procurement BUs.