By using "Observers" function it is possible to add a list of e-mail addresses to which you want to send a copy of the signed document at the end of the signatures. These people will not necessarily participate in the signature.
After uploading the document and adding who the signers will be, click the "Observers" button and enter up to 20 email addresses to be notified when everyone signs.
Tip! if you are in "Templates & Forms", you can go to the tab "Advanced Options" of your template > "External Notifications" to insert the list of recipients of these documents.