A merchant can process every card successfully and still receive deposits later than expected if its POS batch closes after the processor’s funding cutoff. At the same time, closing too early can create problems for restaurants that still need to finalize tips, late sales, open checks, or legitimate payment adjustments....
Terminal Says Approved but the POS Says Failed: How to Prevent a Duplicate Charge Before Retrying
A card terminal can display “Approved” while the POS shows “Failed,” “Timeout,” or no completed sale. The dangerous reaction is to immediately run the card again. If the processor already approved the first attempt, that second attempt can create another authorization—and potentially another captured charge. Good POS duplicate charge troubleshooting...

