Apply shipping costs across multiple orders by following these steps.
- Select AP in the left menu
- Select "Supplier invoices"
- In the submenu, choose "Enter Supplier Invoices"
- Next, click the "There are multiple orders for this invoice" checkbox
- In the Vendor drop down choose the shipping vendor (for example "UPS Shipping")
- Then, click "Add Data" in the top right
- In the window that pops up paste the in the shipping data
- Finally, click "Submit"