To help protect from accidentally overcharging customers and reduce chargebacks, managers may request that manager approval be required for tips over a certain amount or percentage. This can be accomplished inside the Credit Card payment by dollar amount and percentage. 

To set a dollar amount, ex. tips over $50 require manager approval, enter the whole number into the "Manager Over" field in the credit card payment. 

To set a percentage, ex. tips over 50% require manager approval, enter the whole number percentage in the "Manager Tip %" field.