There are several ways to do this. Either email, SMS, or print an invoice.
Open an invoice, go to Home > Sales > Choose an invoice. Tap on the “Pencil Icon” > Signature. Enter the customer’s signature. Then choose the Signed by. Enter additional message on the “Sign text” field You have successfully captured a signature to an invoice, and will be included in the pdf printout.
Step 1: Create a Shipping Item Go to Home > Items > menu > (+) Add. Enter your item name (eg. Shipping Charges), then set the item Type to Shipping Item. Enter other item info as desired and Save. Step 2: Add the shipping item to your invoice Open an existing invoice > Add an item […]