Show client their total price on Ipad and allow them to select their gratuity there
Previously with the reception app we were able to discreetly show our clients their total via the Ipad and allow them to select their gratuity there and then ask them for their card to charge the total. Now with Duo we have to vocalize their total, ask for their card, run it, and then show them the Ipad where they can select gratuity.
Some of our services we offer are over $4,500 so I feel it is much more classy to discreetly show them their total rather than announce it - especially since we are a relatively small salon where other clients can easily over-hear.

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Aimee Brigham commented
Show the account credit on the confirmation screen! When applying an account credit - the invoice total shows up on the confirmation ipad as the entire balance; it does not show the credit applied until after credit card has been inputted. It seems like a trust exercise for all.