How to ensure vendor site from BPA is selected on autocreated standard PO when vendor has multiple a

Hello

We have an issue where the site that is set on the BPA isn’t flowing through to the PO when it is autocreated.

This happens when the vendor has multiple active purchasing sites and it appears the system defaults to the first site rather than the site set on the Blanket Purchase Agreement.

How do we ensure the vendor site from the Blanket Purchase Agreement is selected on the auto-created standard PO when the vendor has multiple active sites?

Thanks