Unable to Default Bill to Location as Ship to location for Autogenerate PO'S

Summary:

Hi Team,
We have a Requirement to auto generate PO'S for approved purchase Requisitions. We are able achieve this by Negotiated checkbox.
Auto created PO Ship to location is defaulting form Delivery location of the Requisition. But Bill to is defaulting from Common options for Procurement and payables setup. This setup is applicable for entire BU.
Irrespective of Inventory Organization it default same Bill to.
But we need Bill to location same as Ship to

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