Authorizations
Authenticate API requests via an API Key
Path Parameters
Response
Updates the subscriber's email address and first name
We will ignore custom fields that don’t already exist in your account. We will not return an error if you try to add data to a custom field that does not exist. Please use Create a custom field to create custom fields before setting for subscribers.
NOTE: We support creating/updating a maximum of 140 custom fields at a time.
Authenticate API requests via an API Key
Updates the subscriber's email address and first name