LINE Yahoo Ads (formerly Yahoo! JAPAN Ads) is an advertising service formed by the merger of Yahoo! JAPAN Ads and LINE Ads in April 2026. This article explains the differences between search and display ads, their placements, how to get started, and management tips in terms that are clear even for businesses advertising for the first time.
What is LINE Yahoo Ads?
LINE Yahoo Ads is an advertising service created by combining Yahoo! JAPAN Ads and LINE Ads, which were previously offered separately. According to the official website of its operator, LY Corporation, the two services merged on April 1, 2026, under the name "LINE Yahoo Ads." If you have been searching for information under the names "Yahoo! JAPAN Ads" or "LINE Ads," understanding this name change will make the following information easier to follow.
Before the merger, Yahoo! JAPAN Ads and LINE Ads were managed through separate interfaces and accounts. Their ad offerings are now organized under the single LINE Yahoo Ads brand. Search ads from the former Yahoo! JAPAN Ads continue to be offered as "Search Ads." The former Yahoo! JAPAN Ads programmatic (auction-based) display ads and the former LINE Ads, including Talk Head View, have been combined as "LINE Yahoo Ads Display Ads." LINE Yahoo Ads is therefore a continuation of the services for businesses that previously used only Yahoo! JAPAN Ads or only LINE Ads. Changes from the former LINE Ads and how to advertise on LINE placements are explained in detail in our article, The LINE Ads merger and how to advertise going forward.
Source: LY Corporation
The official website reports 100 million monthly active LINE users in Japan as of the end of March 2026 and 54 million monthly logged-in Yahoo! JAPAN user IDs as of the end of March 2025. Based on these figures, it describes the service as offering "reach to approximately 80% of Japan's population." It also states that display ads "can reach 100 million or more users." A key feature of LINE Yahoo Ads is its ability to connect with people during everyday activities such as search, news consumption, and chat. Even businesses already running Google Ads or social media ads may find it worth considering as an additional platform with different types of placements.
Ad types
LINE Yahoo Ads has two main types: search ads and display ads. The official website describes the strength of combining them as the ability to reach not only users based on search behavior but also people with various needs and interests through a wide range of placements. Understanding the differences in placements and billing methods will help you choose based on your business objectives.
Ad type | Main placements | Billing method |
|---|---|---|
Search ads / listing ads (paid search ads) | Yahoo! JAPAN Search results | Pay per click |
Programmatic (auction-based) display ads | LINE chat list, Yahoo! JAPAN homepage, major partner sites, and more | Pay per click, pay per impression, pay per view, and pay per friend added |
For example, you could use search ads to reach someone who notices a problem with an air conditioner and searches for "air conditioner repair." Display ads could build awareness among people who have not yet noticed a problem but are reading articles about extreme heat on Yahoo! JAPAN News (this is only an example). The basic approach is to assign roles based on the user's situation: search ads for "people actively looking now" and display ads for "people who are not searching yet but may be interested."
Search ads (listing ads)
Search ads appear above non-advertising search results when a user searches for specific keywords on Yahoo! JAPAN Search. The official website explains that displaying ads when users are searching for products or services allows businesses to reach people with an identified need and a strong intent to purchase or use a service efficiently. Billing is pay per click, so you incur a cost when an ad is clicked. For how search-based advertising works in general, see our article, What are listing ads?.
Programmatic (auction-based) display ads
Display ads use banner or video creative. They can run in a variety of ad placements, including the LINE app's chat list, the Yahoo! JAPAN homepage, and major partner sites. Because they appear in places people use daily for information and communication, they are suited to building awareness among potential customers before they search and reaching people based on their interests. In addition to pay-per-click billing, they support impression-based billing, billing by video views, and billing by the number of friends added to a LINE Official Account, so you can choose according to your objectives. For the general characteristics of display ads, see our article, What are display ads?.
Which businesses is it suited to?
LINE Yahoo Ads lets you run ads across LINE and Yahoo! JAPAN, two services with large user bases in Japan. Based on this feature, it may suit the following businesses.
Businesses seeking broad awareness in Japan without limiting their audience to a specific region or age group (the large combined user base of LINE and Yahoo! JAPAN is a strength)
B2C and ecommerce businesses that want to reach audiences at different stages, using search ads for people with an identified need and display ads for potential customers (the two ad types can be combined within one service)
Businesses that want to add a platform with different placements alongside Google Ads or social media ads to reduce audience overlap (the LINE chat list and Yahoo! JAPAN News offer different touchpoints from search engines and social media)
Businesses that want to connect with people in everyday settings such as news articles, transit route searches, and chat lists
Businesses seeking more friends for their LINE Official Account (display ads also support billing per friend added)
Small and midsize businesses and startups that have difficulty setting aside large ad budgets, since there is no minimum ad spend and the official website says campaigns can start with a budget of around a few thousand yen per day
Some industries may be subject to specific ad review standards. Industries such as finance, healthcare, and beauty, where ad claims are already subject to many legal restrictions, tend to face stricter reviews across ad platforms, including LINE Yahoo Ads. Check the official website to confirm whether your planned product or service is eligible and what wording is permitted. For products, services, and industries that meet these conditions, the platform is an option for reaching a broad audience through a combination of search and display ads.
How to get started
The official website explains the process from applying for LINE Yahoo Ads to opening an account. The general steps are as follows.
Register for a Business ID and log in (if you already have a Business ID, you can use it to log in)
Enter the information needed to open an account (you need to create or select a LINE Official Account and Business Manager)
Log in to the ad management interface and configure your ad account
According to the official guidance, the estimated time from application to ad delivery is approximately 1–3 business days. There is no minimum ad spend, and you can start with a budget of around a few thousand yen per day. Required documents and review criteria vary by industry and product or service, so always check the latest guidance on the official website for accurate information. Applications to open new accounts under the former LINE Ads service closed on June 30, 2026, so new advertisers now apply through LINE Yahoo Ads. The official website also describes free support for initial setup, such as writing ad copy and configuring delivery settings, along with consultations with specialist staff.
In addition to the application process, preparing the following before placing ads can make it easier to get started.
Banner images and video assets for display ads
Candidate keywords for search ads
Product or service pages (landing pages) that ads will link to
A LINE Official Account if you plan to use billing per friend added for display ads
A rough monthly and daily budget
These are general preparations common to many ad platforms, not necessarily mandatory requirements specific to LINE Yahoo Ads. Check the application screens or official website for the latest requirements.
Ad management tips
LINE Yahoo Ads offers two ad types, search and display ads. Display ads alone support several billing methods: pay per click, pay per impression, pay per view, and pay per friend added. Before allocating your budget, clarify your objectives, whether awareness, comparison and consideration, purchases and inquiries, or gaining friends, based on each placement, the user's situation, and the billing method. Allocating budgets to search and display ads without clarifying your objectives can make it difficult to see which results lead to actual sales or inquiries. Once ads begin running, continually review metrics that match the billing method, such as CTR and CPC for search ads or impressions, video view rate, and friends added for display ads, and adjust creative and delivery settings. Many businesses also run Google Ads, social media ads, and other platforms alongside LINE Yahoo Ads. Allocating budgets across platforms, comparing performance metrics, and reusing or varying creative can therefore add to the workload.
Managing multiple platforms and ad offerings manually takes time just to switch between interfaces and compile figures. Cascade, an AI agent for ad management, lets you manage ads across multiple platforms in one interface and supports search and display ads from the former Yahoo! JAPAN Ads, among other platforms. It also supports allocating budgets across platforms and campaigns with Budget Optimization AI, generating ad creative, and automatically generating reports, reducing the practical workload of managing several platforms at once. Manually comparing ad offerings with different billing methods and placements and shifting budgets between them is time-consuming. Letting AI handle these tasks gives the people responsible more time for decisions such as strategy development and creative planning. For more on using AI in ad management, see our article, What is AI for ad management?.
For a separate explanation of display ad placements, submission specifications, and differences from GDN, see What is YDA? Differences from GDN, its current name, and how to get started.
For Microsoft Ads, which serves ads on Bing Search and Edge, see What is Microsoft Ads? Placements, costs, and how to get started.
FAQ
What happened to the former Yahoo! JAPAN Ads?
The former Yahoo! JAPAN Ads merged with LINE Ads on April 1, 2026, and was renamed "LINE Yahoo Ads." Search ads from the former Yahoo! JAPAN Ads continue to be offered as search ads. Its programmatic (auction-based) display ads were combined with the former LINE Ads and are now offered as LINE Yahoo Ads display ads. The standalone service name "Yahoo! JAPAN Ads" is no longer used. Check the official website for specific arrangements related to the merger, such as how existing Yahoo! JAPAN Ads accounts are handled. When reading materials or blog articles about the former Yahoo! JAPAN Ads, keep in mind that it is now provided as LINE Yahoo Ads.
Can I still run LINE Ads?
Applications for new accounts for the standalone LINE Ads service closed on June 30, 2026. However, its placements, including Talk Head View, have been combined with the former Yahoo! JAPAN Ads display ads and continue to be available as "LINE Yahoo Ads Display Ads." For details not explicitly stated on the official website, such as specific migration schedules for existing accounts, check official guidance. Distinguish between the end of new applications under the name "LINE Ads" and the availability of LINE placements themselves.
How much advertising budget do I need?
According to the official website, LINE Yahoo Ads has no minimum ad spend, and you can begin with a budget of around a few thousand yen per day. Pay per click is the basic billing method for both search and display ads. Display ads also support pay per impression, pay per view, and pay per friend added. The right billing method and budget depend on your industry and objectives, so check the official website or ad management interface for specific cost information. Starting with a small budget and adjusting it based on results is also an option.
Conclusion
LINE Yahoo Ads was created by merging the former Yahoo! JAPAN Ads and LINE Ads in April 2026. Its two offerings, search and display ads, provide access to placements on both LINE and Yahoo! JAPAN. The former LINE Ads has stopped accepting new standalone applications, but its placements have carried over to LINE Yahoo Ads display ads. With no minimum ad spend, businesses considering advertising should first check the official website for the latest account setup procedures and review criteria, then plan budget allocation based on the characteristics and billing methods of search and display ads. Even if the changes to names and offerings after the merger seem confusing, the basic approach remains largely the same: "Use search to reach people with an identified need and display to reach potential customers."
For businesses already using Yahoo! JAPAN Ads or LINE Ads, the first step toward using LINE Yahoo Ads effectively is to understand the changes to names and ad offerings. For businesses considering advertising for the first time, it is to understand this new option.
If you want to manage multiple platforms, including LINE Yahoo Ads, more efficiently, Cascade, an AI agent for ad management, is one option. For details on features and pricing plans, visit the official Cascade website.
