There can be situations where your customers may accidentally enter a manual tip percentage incorrectly and leave a larger tip than planned. By default, the terminal enables a tipping threshold that requires the Merchant password for any tip over 50% of the initial sale amount (for example, a $55 tip on a $100 bill). You can disable or adjust the threshold value if needed.
NOTE: The tip threshold feature is designed to protect the customer and the merchant by ensuring that the customer is aware of the generous tip they intend to leave, which prevents the possibility of a future chargeback.
To enable the tipping percentage threshold: