Recipients on CC will receive a copy of the signed document once this has been signed. You can add recipients on CC when the signature request is "In progress" or "Completed".
For requests in status "Completed", recipients on CC will immediately receive the copy of the signed document.
To add recipients on CC, click on the document to go to the details:
Click on "Send copy to another contact", on the CC section:
A window will appear and you'll have to add the recipient's name and email. You can add as many as you wish:
Click on "Continue" to finish the process.
The new recipient will receive a notification email with the signed document attached.