Step 1: Go to 1-1-1 ('Cash sale'). Enter the stock items to sell as per normal.
Step 2: Press <F11> for Email + Tender (instead of the usual <F10> Tender). You will get the email form.
Step 3: Type in the customer’s email address; a blind carbon copy (BCC) email address if you want a copy of the email; the email subject and a short message that will be in the body of the email.
Step 4: Press <F10> to save.
Step 5: You will get the normal tender screen. Complete as per normal.
Step 6: Press <F10> to conclude the transaction. A transaction document will print and a PDF copy of that will be emailed to the customer (and to your BCC address, if provided).