⦁Demand and supply theory solves organizational problemsAny organizations can let salespeople feel happy to sell their products. Then their sale performance will also raise. The question concerns that how to make them to feel happy to help the organization to sell their products? I shall explain some methods as below: How to manage sales for predictable revenue? In order to hold salespeople sale psychology whether they feel happy or unhappy, executives need to understand the essential activities, sales managers must focus on to be analysts for change, foster continuous improvement and create a sales culture that drives results. Sale executives need to know how to achieve top objectives of sales management is to drive sales, capture new revenue and exceed monthly sales and margin objectives, e.g. performing sale straregy development with each salesperson on Monday morning at a minimum, and in a formal one-on-one meeting during the week;using strategy tools and questioning techniques to ensure the prospects are qualified and the strategy is valid; knowing the ratio between future values and future monthly quotos to raise sale opportunities; six month on-going sale plan aims to make sure there are coordinated to achieve sale to various market segments; developing on ongoing series of networking events to build market awareness in order to ensure all salespeople attend specific events involved in networking by salespeople to, understanding the market how to influence salespeople sale method to sale number, understanding trends and seeking some channels to raise additional sales opportunities; how to create trained or warm sale environment to let sales teams feel happy to sell.How to design and utilize efficient control sale procedures? The sale cycle procedure may include these market activities, such as advertising, sales promotion, market research, physical distribution, pricing, sale place, sale staffs seeking. SO, any organizations need have good sale planning, direction and control of the personnel, selling activities of a business with including recruiting, selecting, training, rating, supervising, paying or reward system, motivating strategy, as all these tasks apply to the personnel sales-force.The factors may influence salespeople psychology, they may include fair income reward system, or appreciation methods and sale career development plan to every salesperson. It aims to encourage them to achieve the highest sale effort. Anymore, methods to train sale managers have the right direction to guide, lead and motivate their salespeople, e.g. knowledge of salespeople psychology needs how to satisfy them, understanding why they choose to do or act themselves sale behaviors in order to improve their weakness to motivate salespeople to achieve company's sale target goal every month easily, e.g. raising profitability, sales volume, market share, growth and corporate image building raise clients' confidence to choose to buy this company's any products more easily.The sales organization is required for the following purposes, they may include: enabling top-management, to devote to more time in policy making for the growth and expansion of business to divide and fix authority among the subordinates, so that they may shirk work, to avoid repetition of duties and functions, so that there may not be any confusion among them to locate responsibility of each and every employee, so that they can complete the whole work in stipulated time, if not then the particular person must be responsible, to establish the sales effort to enforce proper supervision of sales force.