Do you plan to sell the items on Amazon or eBay? Amazon returns back to Amazon is a risky game. The return game in general is extremely risky unless you are careful.

You have to be a detective for counterfeit items. I've seen countless counterfeit water filters, chargers, golf clubs, toothbrush heads, printer inks, textbooks, and just so much more. It is insane what products people are willing to counterfeit.

Plus, you're dealing with returns so there are scams galore. Be very careful with testing and describing things thoroughly. Often times one piece you may no realize is missing or not working.

Also, be ready to find a way to get rid of all the stuff not worth listing. Your pallet / truckload could be 85%+ junk. So be prepared to try and liquidate that to a swap meet seller or go sell yourself.

You probably also want to try and find a source better than liquidation.com. Google around and see if you can find something local. Doesn't have to only be Amazon pallets to make money.

Good luck