BYD should improve the efficiency of the collection of accounts receivable and the turnover rate of inventories. The company's senior management should pay attention to it and improve its operational capabilities. BYD can manage account receivables by strengthening account receivables management and external cooperation. BYD can arrange a special person to establish the customer's detailed files, and at the same time, a dedicated person manages the file of the account receivable, and manages it separately according to the time of the transaction. In order to ensure the timely collection of accounts receivable. When cooperating with external companies, companies with different creditworthiness can use credit points to reduce cooperation with companies with poor credit.