I am allowing pre orders of items that are $2 with a 2.9 +.30 transaction fee I lose money on the transaction.
I do not see a way you could do this. I guess you could cancel the payment and reaccept cash/charge. Perhaps there's a way to set up a minimum online ordering amount? Or even just state that you have a $5 minimum (or whatever) on your ordering site.
Interesting thought though. I'm setting up my online ordering store for my coffee shop and have not considered this. Ugh.
Square Community
Square Products