Verification of "stateOrProvinceCode" and "countryCode" fields in order details

We've enabled verification for "stateOrProvinceCode" and "countryCode" fields to comply with the codes used in Ecwid. Please note that using different codes will result in an error.

The full list of codes is located here: https://api-docs.ecwid.com/reference/list-of-state-codes