# Referrer

Properties

Name	Type	Description	Notes
id	string	The ID of an existing customer.	[optional]
source_id	string	A unique identifier of the customer who validates a voucher. It can be a customer ID or email from a CRM system, database, or a third-party service. If you also pass a customer ID (unique ID assigned by Voucherify), the source ID will be ignored.	[optional]
name	string	Customer's first and last name.	[optional]
description	string	An arbitrary string that you can attach to a customer object.	[optional]
email	string	Customer's email address.	[optional]
phone	string	Customer's phone number. This parameter is mandatory when you try to send out codes to customers via an SMS channel.	[optional]
birthday	\DateTime	`Deprecated`. ~~Customer's birthdate; format YYYY-MM-DD~~.	[optional]
birthdate	\DateTime	Customer's birthdate; format YYYY-MM-DD.	[optional]
address	\OpenAPI\Client\Model\ReferrerAddress		[optional]
metadata	object	A set of custom key/value pairs that you can attach to a customer. The metadata object stores all custom attributes assigned to the customer. It can be useful for storing additional information about the customer in a structured format. This metadata can be used for validating whether the customer qualifies for a discount or it can be used in building customer segments.	[optional]