countryCode values when creating users or querying states.curl --location 'https://customers.coldmailreseller.com/api/v1/integration/geo/countries' \
--header 'cmr-x-api-key: <api-key>'{
"status": 200,
"message": "Countries list",
"data": {
"countries": {
"United States": "US",
"India": "IN"
}
}
}