The key is to make the transaction itself the source of data, rather than organizing it separately after the deal is done. The concrete approach is to handle inquiries, quotations, POs, and shipments all in one place. Each time you send something out, it creates a version record at that moment. Later, when you need to analyze questions like 'what is the inquiry-to-order conversion rate for this product in that market' or 'what is the average order cycle for this customer,' the data is already there—no need to dig through LINE conversations and Excel files. The key is keeping the workflow simple enough that sales staff don't feel they are 'recording data' but rather 'handling business,' with the record-keeping happening as a natural byproduct. Data accumulated this way has continuity and can support real business decisions.