Sandbox Cloning

You can create a sandbox by cloning an existing sandbox rather than using your production org as your source. Save time by customizing a sandbox with a set of data and metadata and then replicating it. Sandbox cloning simplifies having multiple concurrent streams of work in your application life cycle. You can set up a sandbox for each type of work, such as development, testing, and staging. Your colleagues can easily clone individual sandboxes instead of sharing one sandbox and avoid stepping on each other’s toes.

• Clone a Sandbox
  When you clone a sandbox, its data and metadata are copied to the new sandbox. If included in the source sandbox, entity history and Chatter are copied for only Full sandboxes. A cloned sandbox uses the same license type as its source org. For example, to clone a Full sandbox you must have a Full sandbox license available.
• Refresh a Cloned Sandbox
  Refreshing a cloned sandbox updates the sandbox’s metadata and data from its source org. The org ID of the sandbox changes each time it’s refreshed.