We use Zendesk for customer support and hosting documentation. Additionally, we provide documentation search from within our application using Zendesk's API

Receiving notifications when Tasks are assigned and being able to update the Tasks when the calendar event has changed.

Our Customer Care peeps use it and we synchronise customer data into it to help them organise and find things quickly.

It's our customer service system for dealing with inbound ticket requests from any channel integrated.

We use freshdesk to host and edit all ou help pages, and manage our contacts

Customer support portal - only used for the knowledgebase functions

Communication with our clients, support tickets

General help desk functions