It's okay to tell a seller you’ve decided not to buy an item. Sales aren’t complete until you exchange money for an item.
You can withdraw an offer by message before meeting up. You can also decline to buy an item if you’ve met with the seller to inspect the item and it isn’t what you want. Be polite! Thank the seller for their time, especially if they’ve met up with you in person.
If a sale doesn’t work out, don't be discouraged. With so many buyers and sellers on OfferUp, you're likely to find what you're looking for soon.
An order will be canceled automatically if the seller does not ship the item. A buyer can cancel an order by following the steps in this article.