A timestamped token, the value of which was returned in the response to the first call to SetExpressCheckout. You can also use the token returned in the SetCustomerBillingAgreement response.
Either this token or a credit card number is required. If you include both token and credit card number, the token is used and credit card number is ignored.
Call CreateRecurringPaymentsProfile once for each billing agreement included in SetExpressCheckout request and use the same token for each call. Each CreateRecurringPaymentsProfile request creates a single recurring payments profile.
Note: Tokens expire after approximately 3 hours.