How can I charge an amount on-the-go without adding any product?

How to add a customized fee on-the-go with Oliver POS.

To add a fee or discount on the go with Oliver POS, you must add a product to the cart.

If you don't want to add a product to the cart, you can simply create a new product in your WooCommerce shop that has no price. We suggest titling this new product 'Fee' or something similar. Add this new product and price it as 0 dollars. 

Now, when you launch your register, add this product to your cart and go to the checkout. Under the sub-total, you will see 'Discount'. Select 'Add,' and you will be given the option to add a fee. Hit submit, and then checkout as usual.