Authorizations
Authenticate API requests via an OAuth token
Adding subscribers to double opt-in forms will trigger sending an Incentive Email. Subscribers already added to the specified form will not receive the Incentive Email again. For more information about double opt-in see “Double opt-in”.
The subscribers being added to the form must already exist. Subscribers can be created in bulk using the “Bulk create subscriber” endpoint.
See “Bulk & async processing” for more information.
Authenticate API requests via an OAuth token