The algorithm is based on previous work [14] for implementation to Thai wholesale businesses. We obviously re-write the operation procedure as Figure 1. This is applied to manage inventory and warehouse to all wholesale businesses. We first simultaneously collect history data for forecasting model and warehouse management. The data history of sales value collected for preparing forecasting model is at least 1 year range. The researchers assumed that the forecasting model to be used was the 3 months moving average because there are a few ten