1. Product:
　Yahoo! JAPAN Ads Search Ads
　Yahoo! JAPAN Ads Display Ads

2. Maintenance schedule:
　July 27, 2023 (Thu) 6:00 PM - 8:00 PM (JST)

3. Impacts:
You can't create the change history download file during the system maintenance hours.
You can't preview the change history in the Campaign Management Tool for Display Ads.
Change history during the system maintenance hours will be reflected in the change history after the maintenance is completed.