Christina wants to mark up rates with a handling fee
Christina has already:
Navigated to her Postcode Shipping dashboard.
Set up her zones, ranges and rates in Postcode Shipping.
Set up her zones in Shopify and selected the Postcode Shipping app as the rate provider.
Add a handling fee/rate adjustment:
From the Shopify dashboard click Settings > Shipping and delivery.
Click Manage rates next to the shipping profile you wish to edit.
Expand the 3 dots to the right of the rate in the zone you wish to add the handling free to, and choose Edit.
In the rate edit window scroll down to 'Handling fee'. Here you can add a positive or negative rate adjustment by percentage or as a flat rate. Click Done when you are ready.
Now when Christina's customers' overall total will be adjusted with the additional handling fee, as long as their delivery address is in the zone she applied the adjustment to. Be sure to apply the fee to all zones that need it.
The handling fee is added to the total shipping rate that the customer sees, and is not displayed separately. So a $30 shipping rate with a $2 handling fee will show to the customer simply at a $32 shipping rate.
If you'd like to add a handling fee to a more precise area than a whole zone, we recommend you build the fee into your rates.