The changelog states "Additional fees are extra costs associated with an international package that aren't duties or taxes".
https://shopify.dev/changelog/additional-fees-fields-for-orders#:~:text=fields%20for%20Orders-,API,a...
However, I don't know in what cases additional charges other than tax will occur. What are the specific cases?
I'm looking for specific information as I'm developing functionality to manage shopifify orders using the API.
thank you in advance.
doc: https://shopify.dev/docs/api/admin-graphql/2023-04/objects/Order#field-order-additionalfees
