ability to upgrade service at checkout
ability to upgrade service at checkout (book with a single tan, but check out with an upsold package and apply one session of the package to the appointment)

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Roxy Selzer commented
This would be so helpful for my IV clinic. Book with an individual IV but purchase a package at checkout with the ability to use a voucher from that new package for that days appointment.
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Emily Dretzka commented
From one order, would like the ability to purchase a membership and redeem the voucher for the completed service.
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Lovers Lane commented
Today we need to sell a New Product Sale first to then be able to see Redeemable vouchers on today's appointment. Ideally we should be able to check out the appointment, add a membership and redeem a voucher correctly ZEROing out the Service while retaining the Tip based on full price of service all on the appointment checkout. One step vs two steps.