Supplier information has not been pulled into my Auto Create screen

Hi,

I am trying to create the PO but am unable to create using AUTO create because Supplier information has not been pulled into my Auto-Create screen.

I see the vendor id is NULL in PO_REQUISITION_LINES_ALL for the issue requisition.

I checked another requisition details the vendor id is null in PO_REQUISITION_LINES_ALL but Supplier information has been pulled into my Auto-Create screen.

Please guide me How Supplier information has been pulled into my Auto-Create screen?

Regards,

Vinod