Vendor not populating in Purchase reqs.

Hello,

We are having issues where Purchase requisition is not populating vendor automatically.

Scenario as below:

MRP run creates Purchase Req.

From MD04 we turn the Purchase Req to Purchase Orders.

We have Info Record and for that material and only one Vendor Info Record Exist.

I know if we have a Source list(which we dont want to use) with a Fixed vendor check it might bring the vendor automatically, but I thought if we have a Info Record for that material (and only one Info record exists) then it should bring the vendor automatically in the Purchase Req which will bring the vendor in PO.

We dont want to manually go in the preq and assign the source of Supply.

Is there a way/settings(without using Sourrce list) where vendors will be automatically assigned in the Purchase req if they have a Info record(for only one vendor)

let me know

Thanks

SAP Fans...