Payload Specification

Param Name	Required	Type	Description
`email`	Yes	String	The email address of the customer
`first_name`	No	String	The first name of the customer
`last_name`	No	String	The last name of the customer
`phone`	No	String	A phone number for the customer.
`timezone`	No	String	Timezone of customer, should be in list of TZ database names
`age`	No	Number	Age of customer
`gender`	No	"m" or "f"	Gender of customer.
`language`	No	String	Two letter code of customers language
`address1`	No	String	First line of address for customer
`address2`	No	String	Second line of address for customer
`city`	No	String	City where customer lives.
`state`	No	String	State where customer lives.
`postal_code`	No	String	Postal code of customer's address
`country`	No	String	Country where customer lives
`birthdate`	No	String	ISO formated date when the customer was born.

📘
Any additional params will be treated as strings and added to the custom_fields of the list contact.

🚧
All specified parameters will update the customer's record for all applications within Rejoiner, not just for the given list.

{
  "email": "test@example.com",
  "first_name": "Test",
  "age": "28",
  "another_custom_field": "abc"
}

On a successful request, the response will return a structured response representing the entire list contact.

{
  "customer": {
    "id": "CUSTOMER_ID",
    "email": "test@example.com",
    "first_name": "Test"
  },
  "custom_fields": {
    "existing_custom_field": "xyz",
    "another_custom_field": "abc"
  }
}

Newly added contacts will return a successful response with status code 201.

If the contact is already on the list a successful response with status code 200 will be returned.