Use the same parameters to count the subscribers that are returned using findSubscribersBy.

Input Type Description
token AuthToken Authorization token.
sourceIdentifier xs:int Subscriber source identifier.
filterId xs:int Subscriber source filter identifier.
whereAttribute SubscriberAttributeFilter[] List of SubscriberAttributeFilters
fieldsOnDistinct String[] Enables duplicate fields to be removed.
useBaseFilter xs:boolean Enables the base filter to be used or not (compatibility mode).
Output Type Description
xs:int The number of subscribers.