An error occurred when trying to update for SAPPHIRE Nation Newsletter opt-in!string(369) "{"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"The resource submitted could not be validated. For field-specific details, see the 'errors' array.","instance":"fd319212-e9c5-4d54-a3f7-44938dd37013","errors":[{"field":"email_address","message":"This value should not be blank."}]}"
Mailchimp response code: 400
Privacy Policy