Vendor Payment terms not updating on contracts when coming from a solicitation

When an agreement results from a solicitation the Payment terms are Net 30 but the vendor’s supplier profile reflects Net 15. We are having to manually change these on contracts when we catch them. This could problematic if a vendor as a net 15 vendor and a department issued a PO under their delegated purchasing authority as it could populate the payment terms incorrectly. Is this normal functionality or are there settings that we can set to update these or is this a manual process.

Thanks

Melissa