CMK message for supplier initiated changes to the PO

Summary:

Wanted to see how we can generate a CMK PO Change Outbound for POs initiated by suppliers.

Content (please ensure you mask any confidential information):

1. We have a supplier - 3PL model in our business. We create a PO and once the CMK message is generated for NEW_PO our warehouses and suppliers receive this electronic XML message for our partner systems interfacing.
2. We have these suppliers onboarded to the supplier portal to collaborate on those POs.
3. The Order Admin at the supplier sometimes initiate these changes and they come in for approval on the PO to our buyers.