Additional shipping costs can be added to your rates via the markup feature. This is done in your profile settings.
In your profile settings, markups can be added under the section to add additional shipping costs.
Note: Profile markup changes take roughly 3 minutes to take effect.
If you set markup type to flat fee or a percentage of all carriers, the selected profile will have the markup added to the rate when shipping.
Advanced settings allow you to set additional criteria for your markups. In advanced settings you can specify markup type, markup value, rate type, carrier, carrier code, carrier account, USPS zone, order values, and order weights.
If you need assistance setting up rules for your markup please contact support at 503-331-4000 or you can email firstname.lastname@example.org.