Campaigns in Goodkind are ideally supposed to be ongoing. However, you can always deactivate a campaign if you don't want too many active ongoing campaigns on your campaign page.
To deactivate a campaign, click on the campaign you would like to be deactivated, then click on the deactivate campaign button on the top right corner.
To better understand what happens when you click deactivate campaign let's look at some scenarios.
I accidentally approved a story and don't want the emails to go out, I pressed the deactivate button. Will the emails still go out?
No, deactivating a campaign will not stop emails from going out.
I deactivated a 1:1 campaign, what happens to stories that haven't been recorded?
Any story pending assignment or still not recorded will expire.
I have a story scheduled to go out, what happens if I deactivate campaign?
Deactivating a campaign before a scheduled story goes out will stop any emails from going out. If the story was already recorded, then it will be in your story library.
I accidentally deactivated my campaign can I reactivate it?
Yes, you can reactivate the campaign by going to the list of campaigns, and from the dropdown menu that reads "Show Active Campaigns", choose "Show Inactive campaigns"