When you are creating an order in POS and you are at the last step, where the customer needs to pay, you have 5 different options:

Print Receipt
If you click on Receipt you can print the receipt for the order, when finished click on Done.

Email Receipt
If you click on the box right next to E-mail receipt you can add a E-mail that you want to send the Email Receipt to, after that you click Done.

If you wish to print an Return label or a Invoice (A4) you can also do that, by clicking on one of them or both, if you need both. When you are done you click on Done.

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