If you are the owner of a channel, you have the ability to close it. See Closing, deleting, or archiving a channel.

Closing a channel makes it inactive, but as the owner, you can reopen (and reactivate) it. 

To reopen a closed channel:

1. To find the closed channel, in the AirSend dashboard's Channel drop-down list, choose Show Closed or Show All. 
   
   The channel appears on the desktop.
2. Reactivate the channel from the dashboard or from the open channel:
   
   
   • From the dashboard: click the More icon (three dots) on the channel and choose Activate channel.
     
     The channel is reopened.
     
     
   • From the open channel: open the channel, and in the channel toolbar, click the Channel settings icon:
     
     The Channel settings dialog box opens.
     Click the Operations tab, and next to Reopen Channel, click Reopen.
     
     Then confirm that you want to reopen the channel.
     The channel is reopened.