Ship via refers to the shipping method indicated on a sales form or a
purchase order. If you use the Ship Via field on sales forms or purchase
orders, you can limit a report so that it shows only the sales or purchases for
which you used a particular shipping method—for example, UPS.
Two or more shipping methods
Click the Ship Via drop-down list and choose Multiple shipping methods. Select each shipping method you want to include in the report.
One shipping method only
Click the Ship Via drop-down list and choose a shipping method from the bottom section of the list.