What is difference between quotation and sales order?

A quotation is a formal document provided by a seller to a potential buyer, outlining the proposed prices and terms for specific products or services, often before a sale is confirmed. In contrast, a sales order is a document generated after a buyer accepts a quotation or places an order, indicating the buyer's commitment to purchase the specified items under agreed terms. Essentially, the quotation is an offer, while the sales order is a confirmation of that offer.