According to the previous tests, combined with the online behavior habits of platform users, it is recommended that you update your advertising materials every 3~7 days. If the exposure and click-through rate of your advertising materials continue to be poor during the new advertising training period (1~7 days), you can consider suspending or updating the existing materials. You can also choose third-party tools to help optimize your work. Information flow and SEM Jiuzhilan system have done a good job.