This is a situation that many small and medium-sized enterprises will encounter: 1. Business splitWith the continuous expansion of the scale of the enterprise, business splitting has become an inevitable choice. Business splitting refers to the separation of various businesses of an enterprise to form independent subsidiaries or departments for better management and operation. This separation not only helps to improve the operational efficiency of the enterprise, but also better meets the needs of customers and enhances the competitiveness of the enterprise. 
Second, sales and service are separatedSales and service are two important links of the enterprise, and they can better play their respective roles by separating them. The sales department is mainly responsible for promoting products, expanding the market and customers, while the service department is responsible for providing after-sales service, solving customer problems, and maintaining customer relationships. The responsibilities of the two departments are different and therefore need to be managed separately in order to better play their respective roles. 3. Communicate with suppliers to ensure the legitimacy and standardization of purchase channels. If the other party really can't provide the bill, it is recommended to change the supplier. This is because without legal bills, businesses cannot carry out financial accounting and tax returns, and will also face fines and legal risks. Therefore, it is very necessary to communicate with the supplier about the bill. 
Fourth, don't buy *** buy *** is an illegal act, not only will face fines and legal risks, but also affect the reputation and credibility of the enterprise. Therefore, enterprises must not buy *** to comply with relevant laws, regulations and regulations. If an enterprise needs to increase sales, it can be achieved by expanding the market, improving product quality and service levels.