Yahoo! JAPAN Ads API v18 release

October 16, 2025: Updated due to the release of API v18This update includes new information that differs from the initial announcement. Check the following release notes for details.

Yahoo! JAPAN Ads API Search Ads API v18Yahoo! JAPAN Ads API Display Ads API v18

We will release a new version of Yahoo! JAPAN Ads API.

October 15, 2025*This date is subject to change.

We will take additional measures in response to the end of the autobidding type "Enhanced CPC."Refer to the following announcement for details about the end of the feature.Search Ads: End of autobidding type "Enhanced CPC"

・CampaignServiceRemove the cpcBiddingScheme from CampaignService.

・ReportDefinitionServiceThe behavior of the ReportDefinitionService during add and getReportFields operations will be changed as follows. There are no changes to the interface. There are no changes in behavior in versions prior to v17.

In geo targeting, defining the target area by specifying a target point and its radius will be available.*This feature is already available in the Campaign Management Tool. See the following for details.Search Ads: Specifying radiuses will be available in geo targeting

Add a radius specification field to the CampaignTargetService (add/get/set/remove).・Add radiusTarget under target・Add RADIUS to targetType

New error will be added. Add to all available versions.

Add the following to the errors returned by abTestService's abTest.errors[].CAMPAIGN_CRITERION_OVER_LIMITError details: You have reached the maximum total number of "Excluded keywords specified in the campaign," "Associations of target lists with campaigns," "Settings for geo targeting, day of week/hours targeting, and device targeting," and "Target pages of Dynamic Ads for Search (exclusions)."

We will renew the listing system for Shopping Search Ads of Search Ads (Shopping).See the following announcement for details.Search Ads (Shopping): System renewal and feature changes for Shopping Search Ads

With the end of support for "Search keyword targeting," we will also end the creation and modification of search keyword lists. See the following announcement for details.Display Ads (Auction): End of search keyword targeting and automatic migrations

We will add a "fixed-position banner of Brand Panel for Smartphone." Refer to the following announcement in Japanese.ディスプレイ広告（予約型）2025Q3　ブランドパネルトップカバー　リリース 案内

Change the specification when the report is retrieved and requires that the report be displayed in Japanese or English.

In the Java client library, release versions with the suffix "*-spring5" will no longer be supported as of v17.

Find more details in the release notes and reference documents provided in the upcoming release.

Yahoo! JAPAN Ads API v16 will end with the following schedule:

Yahoo! JAPAN Ads API v15 will end with the following schedule: