First, it is good Netiquette to print and save electronic receipts with a product description. So, do save a product description with a receipt.
Receipt Netiquette Ecommerce
Product descriptions are part of the receipt for online transactions. They provide a record of the transaction. A description of the item purchased. Internet retailers provide product descriptions. They help sell products in online and offline stores.
Online, it provides a basis for the transaction. Then, a description. Hence, includes details. Given, manufacture specifications. Safety instructions and information may be contained in product descriptions. If an item arrives damages or different than the description customers may want to send it back and dispute the charge. In the event of a dispute the receipt and product description become evidence of your case.
Print and save electronic receipts with product description because it may be required in a dispute.