Business negotiation is the most common way to resolve various disputes. In the business sense, negotiation refers to gaining an advantage over the competition. Preparation is the basic and most important part of business negotiation. The person who negotiates must have certain skills and must know how to use psychological tools. Fairness is one of the key things that makes the negotiation process successful. People who do not depend on their opponent have absolute negotiating power. If interests are used as a starting point during negotiations, the chances of successfully ending the negotiations are greater. The interest approach is a method that gives the negotiator the opportunity to reach an agreement that will be satisfactory to both negotiating parties. BATNA is a mix of factors that can influence the development and implementation of a negotiation strategy. BATNA dates back to the 1990s when negotiators were trying to find the best solutions for business negotiations. Negotiators must know their own BATNA as well as the BATNA of the other negotiating party. Its value is determined during the negotiations.