Introduction - Vendors
A vendor is who you buy stock from, and the record that carries their lead times, terms and open orders.
In Inventory a vendor is where replenishment starts. What you can promise a customer next month depends on who you buy from, how long they take, and what is already on order with them.

What the record decides
- Lead timehow long they take
- The gap between issuing a purchase order and the goods arriving. It is the number that turns a reorder point into a date.
- Payment termswhen you pay
- Carried onto their bills, so a purchase does not need the terms retyped and a due date is worked out for you.
- A purchase rate listwhat they charge
- Negotiated pricing, applied to their purchase orders and bills automatically.
An item can name a preferred vendor, which is what fills in first when somebody raises a purchase order for it. That is a default rather than a restriction: buying the same item from a second vendor needs no change to the item.
What the record shows you

- What is already on order with them, so you do not order the same shortfall twice.
- What has been received against those orders, and what is overdue.
- Which of their bills are unpaid, and whether any credits are sitting unapplied.