A seller will include tracking information for transactions that require a delivery service. When the delivery service verifies a package has been delivered, the seller is no longer liable for missing, stolen, or damaged packages– given proof it was shipped in a different condition. The buyer and seller will have to work with the delivery service provider, and different levels of shipping insurance exist for scenarios such as these. If a product is delivered and the buyer is not satisfied with the quality, or the product is not as described, then the seller will be responsible. The seller should document the quality of the goods before they ship them, so that the buyer and seller can determine if issues occurred during the shipping process.