You have just initiated a campaign but remembered you forgot to make an amendment and you have not started sending yet...what to do?
Your amendments will only be sent out to those who have not already been sent the campaign or if the contacts view in browser.
Go to Campaign -> Live Campaigns
Here you can choose between pausing a campaign or completely stopping it.
If you make any amendments, when your campaign is no longer paused, your email design will be the updated version.