This article explains how to send a client their transaction receipt via email upon request
Go to Manager > Sales, then use the date picker at the top of the screen to go to the date of the sale. Once you've found the sale, select it.
In the Transaction Details pane that opens, click the Receipt button.
Once prompted, click Email to client to send the receipt to the client by email.
If the client does not have an email address on their client card currently, you will be prompted to enter one.
Note: You cannot email a receipt to a client that's processed as a Walk In, because you don't collect the details of a walk in. In this case, you can reprint the receipt instead.