Order source
An order source is used to track the way you receive orders from customers. For example, you can set up an email, fax, phone, or walk-in order source.
Order sources are for your reference and you can define your own reports to track these sources.
You can assign a default order source to a user ID, assign an order source to an order during entry, or leave the order source blank. Whenever you define an order, the order source that is assigned to the user ID is the default but you can override it at order entry.