To optimise your deliverability, the number of contacts in your ActivePipe account may be set to a certain maximum limit. 

Your unsubscribed and not subscribed contacts are included in this number, however shared and deleted contacts do not count towards your contact limit.*

You can request your contact limit be increased by contacting the ActivePipe support team.

* Deleting contacts from your account is not recommended as (particularly unsubscribed) contacts can be re-added as new and subscribed at a later date.