An offer is a vendor’s price and delivery time for one of your products. Recording offers means that when you raise a purchase order, the right price and vendor are already there, and you can compare suppliers for the same product at a glance.
Record an offer
You can link a vendor to a product from either side: from the product, or from the vendor. The result is the same offer.
Open the product's Vendors tab
Open Products, select the product, and go to its Vendors tab. (From a vendor’s detail page you can do the reverse and add a product to that vendor.)
Add a vendor
Choose Add Vendor, then search for and select the vendor you want to link.
Enter the price and delivery time
Enter the vendor’s price for this product and pick a delivery time: Instant, 1-2 days, 3-5 days, 7-10 days, 10-15 days, or 15-30 days. The price is recorded in the vendor’s own currency when they have one, otherwise your store’s currency.
Save
Choose Add Vendor to link the vendor. It appears in the product’s vendor list with its price and delivery time.
Each vendor can have one offer per product. If a vendor is already linked to the product, they are not offered again in the picker.
Edit or remove an offer
In the product’s Vendors tab, each linked vendor is a row. Choose Edit from a row’s menu to change its price or delivery time inline, then confirm or discard. Removing a vendor stops listing them as a source for that product. Purchase orders you already raised against them are unaffected.
Mark a primary offer
When a product has more than one vendor, you can mark one offer as Primary. The primary offer is the one used by default, so its vendor and price pre-fill a new purchase order for that product. To change it, open a non-primary row’s menu and choose Set as primary, which moves the badge to that offer.
Recording offers pays off at order time. See Raise a purchase order, where selecting the vendor pulls in the offer price automatically. 
