Yahoo! JAPAN Ads API | Developer Center

2025/06/04

Display Ads: Change in the method for determining ad delivery platforms

Updates

June 4, 2025: We have started applying this change.
April 15, 2025: We announced this information.

Product

Yahoo! JAPAN Ads Display Ads

Date

Starting June 3, 2025

Summary

We have started changing the platform determination method for ad spaces within the LINE app and apps provided by LY Corporation. The changes will be applied gradually. This change aims to improve ad management efficiency by making platform selection more intuitive and straightforward. 
The changes are as follows:

(Before)
Ad places that appear on in-app browsers: web
Other ad places: app

(After)
All ad places within the app: app
*Ad places that appear on in-app browsers will also be considered as app.

Impact of this change

The impact of this change is as follows:

• If you have specified "Web" only in the platform for device targeting, ad delivery will decrease because fewer ad places will be categorized as "Web" within the app. To continue delivering ads to the affected ad places after the scheduled date, change the platform to "All platforms (web/app)."
• If you have specified "App" only in the platform for device targeting, ad delivery will increase because more ad places will be categorized as "App" within the app.
• If the platform is specified as "Web," delivery volume will decrease, and if specified as "App," delivery volume will increase. This may cause fluctuations in platform-specific values in performance reports.
• If you are using the following tracking parameters, the values may fluctuate.
  {isApp}: The value for "false" will decrease, and the value for "true" will increase.
  {deviceAppType}: The value for "web" will decrease, and the value for "app" will increase.

Comments

You can check the target apps provided by LYC, in addition to the LINE app, through the following links:
iOS app
Android app