1. Prescription principle: original materials such as terminal documents, sales statistics and original flow charts are not submitted as required within the specified time.

2. Principle of division of responsibilities: the representative is responsible for controlling the accounting of statistical expenses of terminal sales, the supervisor is responsible for auditing relevant data in the region, and the provincial manager is responsible for auditing data in the province.

3. Principle of data authenticity: personnel at all levels ensure that the submitted data is true and accurate.