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Currently, the Remit-to address code assigned to a vendor with "Use as Default" set to true will default to a Purchase Order (PO) when the PO is created manually. However, it does not default when the PO is created from the requisition worksheet. According to Microsoft support, this behavior is by design.

I believe the Remit-to code should default regardless of how the PO is created. We must use the Requisition Worksheet to Calculate Plan and determine what should be pushed to a new PO. Therefore, the Remit-to code should default automatically in all cases.