first_name provided is invalid or does not exist.
🔗 Tips To Fix This
- Make sure that you include and set the
first_nameparameter in your request.
first_namefield can only contain ASCII character codes 65-90, and 97-122.
🔗 Why is This Happening?
first_name field is required when you are using the Referral Widget. The field
first_name was not included, left empty, or includes invalid characters.