Product
Yahoo! JAPAN Ads Display Ads (Auction)
Yahoo! JAPAN Ads Display Ads (Guaranteed)

Schedule
October 23, 2025
*This date is subject to change.

Summary
We are making improvements related to the audience lists for customer data (customer data list).

• Extend the valid duration and reference duration of audience list data
  • We will change the valid duration of data that can be applied to the customer data list as follows.
    • Before: 1 to 60 days (initial value is 60 days)
    • After: 1 to 180 days (Initial value is 180 days)

Notes
To extend the valid duration of data imported before October 23, 2025, to 61 days or more, re-import the data. If you change the duration to 61 days or more without reimporting, it may not be available for delivery.

• The maximum duration the data can be referenced in the customer data list based on similar user audience list will change as follows.
  • Before: 28 days
  • After: 180 days

After this change, only data imported after August 23, 2025 will be used to generate similar users.

Change display duration of customer data upload history
We will change the duration you can review the customer data file upload history.

• Before: 30 days
• After: 180 days