The ACTIVE state indicates that a Channel has been successfully
connected with the event provider.
An ACTIVE Channel is ready to receive and route events from the
event provider.
Inactive
The INACTIVE state means that the Channel cannot receive events
permanently. There are two possible cases this state can happen:
The SaaS provider disconnected from this Channel.
The Channel activation token has expired but the SaaS provider
wasn't connected.
To re-establish a Connection with a provider, the subscriber
should create a new Channel and give it to the provider.
Pending
The PENDING state indicates that a Channel has been created successfully
and there is a new activation token available for the subscriber to use
to convey the Channel to the provider in order to create a Connection.
