Yahoo! JAPAN Ads API | Developer Center

Announcement

• 2025/08/28

  Integrated "Business ID"

  We will shift the IDs used for Yahoo! JAPAN Ads from “Yahoo! JAPAN Business ID” to the integrated “Business ID."

• 2025/08/27

  Search Ads: Adding new parameters

  We added new parameters for Search Ads.

• 2025/08/22

  Launch of Gain Friends Ads of LINE Official Account

  We will support "Gain Friends Ads" in Display Ads (Auction) and add or change related features.

• 2025/08/22

  Display Ads (Auction): Audience data connections from LINE Official Account and LINE Ads

  You can deliver ads using the audience data from LINE Ads and LINE Official Accounts in Display Ads (Auction).

• 2025/08/07

  Display Ads (Auction): Improve campaign goal "app promotion"

  We made improvements for Display Ads campaign goal “app promotion.”

• 2025/08/06

  Search Ads: Removal of discontinued ad types and some keywords

  We removed discontinued ad types and some keywords.

• 2025/08/06

  Improvements in smart targeting accuracy

  We have made improvements in smart targeting accuracy for Display Ads.

• 2025/08/05

  Display Ads (Auction): Launch of ad delivery on "Yahoo! JAPAN Disaster Alert" app

  Display Ads (Auction) are now available on the "Yahoo! JAPAN Disaster Alert" app.

• 2025/07/25

  Display Ads: Change the maximum number of items to add to the ad group

  We changed the maximum number of items you can add to an ad group for Display Ads.

• 2025/07/23

  Display Ads: Expansion of interstitial ad places

  We have expanded interstitial ad places in Display Ads.