Moon POS allows you to sort the product list on the checkout page. Here’s how: 

1. Open the Moon POS application on your device, or tap this link.
2. Navigate to POS > Menu.
3. Click on the Filter icon in the top navigation bar.
4. Select the Sort By option and choose the desired filter.
5. Click Save to apply your sorting preference.

                                                                                                                                            - Moon Invoice