A customer tapped but didn't get a stamp
UpdatedThe screen after the tap says why. These are the usual reasons.
"Already stamped"
The phone collected a stamp within the cooldown, 30 minutes by default. This stops two quick taps from counting twice. Change the cooldown if it's too long for your cafe.
"That's today's stamps"
The customer reached the limit of 3 stamps a day.
"That tap didn't go through"
The connection dropped. Ask them to hold the phone on the NFC again.
"This card is paused"
Your subscription needs attention. See Customers see "This card is paused".
Fix it yourselfFor a tap that didn't go through, scan the customer's card instead. You can always add a missing stamp by hand from their page under Customers.
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