Generally speaking, in order to ensure the consistency between the account and the material, the more times the goods are checked, the better. However, the counting requires human, material and financial resources. Sometimes large-scale comprehensive counting may also cause a temporary pause in production. Therefore, it is necessary to reasonably determine the counting time. The key reason for the gain or loss of the counting result is the error in the receipt/issue process. The more frequent the receipt/issue, the more error will be caused.
When determining the time of inventory taking, we should not only prevent the loss of the company caused by excessive inventory taking, but also consider the characteristics of limited resources in the distribution center and fast commodity flow. While investing as little resources as possible, we should strengthen inventory control. We can determine different inventory taking times according to different characteristics, value, flow speed, and importance of commodities. The interval of inventory taking can be from daily, weekly, monthly The inventory is not equal to once a year. For example, the main goods of Class A shall be checked every day or every week; Class B goods are checked every two or three weeks; Class C unimportant goods can be checked once a month. In addition, it must be noted that the duration of each inventory should be as short as possible, and the comprehensive inventory should be completed within 2-6 days.