Yahoo! JAPAN Ads API | Developer Center

2025/10/15

Display Ads (Auction): Changes to placement list create and edit views

Product

Yahoo! JAPAN Ads Display Ads (Auction)

Tool

Campaign Management Tool
Campaign Editor

Schedule

December 17, 2025
*This date is subject to change.

Summary

We will change the display rules for reach metrics (impressions, users) in the list of placement URLs that appears when selecting "Select URL/ad place name you searched" in the placement list create and edit view.

Before: Reach per device (PC, smartphone, tablet)
After: Total reach across all devices

This change reflects adjustments made in response to changes in circumstances since the feature was introduced.

Impact on Yahoo! JAPAN Ads Display Ads API

Versions affected

v18

Services

PlacementUrlIdeaService

Change

Add the following fields to the response when getting a placement URL list.

• reaches: total reach across all devices
• adRequests: total ad requests across all devices

Comments

• Fields are added to v18 only. For more details, refer to "Yahoo! JAPAN Ads API v18 release".
• The values of the added fields will be available after the launch date (December 17, 2025).
• The following fields will also continue to be available, but is scheduled to will be removed on April 1, 2026. Use the preceding new field after the launch date.
  • desktopReaches: reach per PC
  • desktopAdRequests: ad requests per PC
  • smartPhoneReaches: reach per smartphone
  • smartPhoneAdRequests: ad requests per smartphone
  • tabletReaches: reach per tablet
  • tabletAdRequests: ad requests per tablet