Add additional fee to order in checkout ui extension

Extensions
1

I am trying to achieve this:

  1. If the user enters a specific region in the shipment address then show an alert. I managed to do this successfully using the zip code property in useShipmentAddress.
  2. One more thing I want to do is to add an additional fee in the order summary if the user is from a specific region. How can I do this? Can I use the graphql admin API to update the order or what is the best way to achieve this?
2

Honetly can’t remember why, but I ended up creating a $0 product that was automatically added the to checkout based off some custom rules – in your case the region – via Checkout UI extensions, and then a separate Function that calculates the free price and then uses CartTransform to set the $0-product price.

If the fee is static you obviously wont need the Function. My case just had a dynamic fee.

Not sure if you can use this method.

3

hey @curzey thanks for taking the time to reply. Yes, it is a valid approach and I also considered it first but the client specifically requires that the fee should not show as an extra item but as an additional fee or an extra shipment fee with the title “Shipment Surcharge”. I was looking into the graphql API and there is an additionalFee property on order I was just wondering whether you can update it by updating the order or not

1 Like
4

I’m not sure if that is possible. But will follow to see if someone has the solution.