Signature and the cc option

I have a question on the flow for carbon copying someone as part of the signature process.  I have a document that needs to be signed by two people.  I check the button that states it must be done in order.  My question is if i have a group of  people copied on that email, will they get notifications when each person signs, or only when the document is signed by both parties?  I would like to streamline a process here, but i don't want to bog down staffs email with repetitive copies of a document that isn't considered Fully Executed until both parties sign.