Can you pay both cash and credit on one transaction?
Yes! On the POS app at least, when you finish ringing up the items and push "charge" on the total, the payment screen will have an option to "split amount" in the upper right corner.
Not sure what it looks like on the Retail app, but I assume similar.
here is the help article on a Split tender. https://squareup.com/help/us/en/article/5097-process-split-tender-payments-with-square
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