In the simplest form of a sale in which a business for sale is entirely owned by a single person or parent company and is purchased by a single buyer, there are only two parties to the agreement. However, other parties may be involved, for example if several shareholders of the company are sold. In these cases, each of the shareholders must conclude the sales contract to sell their shares. The buyer will want to prevent the seller from creating a new competitive activity affecting the value of the business for sale. The sales contract therefore contains restrictive agreements that prevent the seller (for a fixed period and in certain geographical regions) from recruiting existing customers, suppliers or employees and, in general, from competing with the company for sale. These restrictive agreements must be reasonable in terms of geography, scope and duration.