Do either of the following tasks from the sandbox 
  
Home
  page. 
 
  - Select 
	 Publish Changes
	 to copy the changes to the live site so they are available to all users. 
  
- Select 
	 Discard Changes
	 to revert the current changes and the live site remains unchanged. 
  
After the changes are published, 
  Engage deletes
  the sandbox. To make additional changes, you must create a new sandbox and
  repeat the process.