I had a similar self-checkout error at a home depot. I can't remember what the exact item was but I was buying it in bulk so probably some sort of fastener or s

I had a similar self-checkout error at a home depot. I can't remember what the exact item was but I was buying it in bulk so probably some sort of fastener or screw. The packaging was clear and the scanner must have gotten the barcode off one of the single items rather than outer bundled item barcode. The cart price was high enough I didn't notice the price difference on one item. I called and they said not to worry about it ¯\_(ツ)_/¯