Strategy How to Use Selling Expense Ratios

3. As for the 25-month-plus buyers, follow point No. 2 above. In addition, consider a reactivation strategy to improve these results. This might include the use of promotional offers such as free shipping, a dollar amount off the order, etc. Using one of the cooperative database companies, you also can run a reactivation model to identify the older buyers most likely to make a purchase.