Most POS systems allow you to create a new "Tender Button."
This is a good way for keeping track.
Note:
When a customer sends a spend request, you will get a notification on your phone.
Make sure to approve the spend request before entering it on your POS side.
For help we added some links to some of the popular point of sale systems here.
We are here help please email us at info@dapitapp.com for help with setting up your POS.