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
The response is of type object
.
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
The response is of type object
.