You will find Supplier ID on Agresso Purchase Requisition Entry Screen (blue search button).
This may be either a new Supplier or a Supplier record that may have been closed.
Contact Purchasing Staff to check, ext 2027 or 3599
You can find the Supplier ID - see above. If there is a delay in this, contact Purchasing to see if the Supplier has returned the form. If not, then you need to expedite the matter with the Supplier.
The Supplier can either email or send the form via postal service. The return addresses are on the form.