GRATUITY FIELD AT CHECKOUT - FOR RESTARAUNTS AND SERVICE BUSINESSES.
And have it work w/ your payment gateway!
The mentioned plugins for checkout field editor work great but tips show as individual products/items... If you create a custom tip thru a plugin, each new custom amount is an individual line item.. This is a nightmare for reporting...With regard to the WooSquare plugin, if tips could just map from woo to square as taxes do, that would be helpful...but even if tips would just compile and show on the general woocommerce revenue report for the day, that would help too... thanks!!
Sarathlal N commented
You can use the checkout field editor plugin to create an additional field in WooCommerce checkout page. We can display the field based on too many conditions. Also, we can add an additional fee for these fields.
The demo is available in below URL.
The free plugin also available in WordPress plugin repo.