This is one of those beginner traps that feels too boring to matter.
You find a product.
The price looks good.
The Keepa chart looks decent.
The listing says 2 pack.
Then you look closer and the image only shows one bottle.
That is where people get smoked.
Because if you buy it thinking one unit from the retailer matches one unit on Amazon, but the Amazon listing is actually a 2 pack, your whole buy decision is wrong before you even start.
Not because you are bad at sourcing.
Because you trusted the listing too fast.
Before buying, check all three:
Title.
Images.
Description.
If one says 2 pack and the other two look like a single unit, slow down.
Search the reviews.
Check other sellers.
Look for the UPC if you can.
And if you still cannot prove what the customer actually receives, pass or track it until you can.
Amazon Canada already has enough weird friction.
Do not let a pack size mistake be the thing that kills an otherwise good lead.
What catches you more right now, pack size, variations, or matching the exact product?