@Carlos_Ochoa - Seems odd to use “USA” as a country code. In every other context I’ve ever needed to use a “country code”, it’s been a 2 character code, like “US”.
And what about the region? I think I’ve got it working now, having seen something in a different post, that it should be in the format of “US-TX” (which seems odd - you’d think at least for consistency it would be “USA-TX”… It would just be great for some solid rationale or documentation into what the API is really expecting for these fields. Something certainly better than “string” as it is now in the API documentation…