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Introduction
Across Japan’s corporate landscape, a profound shift is underway in how companies handle digital advertising. Driven by advancements in artificial intelligence (AI) and pressures to cut costs and improve agility, many firms are bringing advertising production and campaign management in‑house rather than relying on traditional external agencies. This movement, sometimes described as a response to a so‑called “Rakuten shock,” reflects wider trends in digital marketing where AI tools are lowering barriers and enabling internal teams to execute work once outsourced. As leading advertisers retool internally, advertising agencies are being forced to rethink their value proposition and business models.
Original
Japanese companies are increasingly choosing to internalize the creation and management of internet advertising, a trend fueled by the rapid evolution of artificial intelligence technology. With AI tools significantly reducing the technical and operational hurdles traditionally associated with digital ad production, major brands have accelerated their shift away from external marketing agencies and toward in‑house teams. According to industry observations, the demand for in‑house digital advertising capabilities has risen sharply, with companies expressing both the necessity and feasibility of managing these functions internally. Digital marketing firm Opt reported a growing number of inquiries from clients interested in internalizing their ad creation and campaign operations, reflecting a broader industry movement. Additionally, companies like RIZAP have reached high levels of internal production, with reports indicating that up to 80 percent of their online advertising tasks are now handled internally. This shift challenges traditional agency models and sparks strategic reassessment across the advertising landscape, as agencies explore new ways to support clients in an era of AI‑driven autonomy.
What Undercode Say:
The trend of internalizing digital advertising is significant not simply because companies want to cut costs, but because AI is redefining competitive advantage in marketing. 광고 internalization allows firms to control creative direction, campaign timing, and data insights without waiting for agency turnaround times. Traditional agency models, which often involve lengthy briefing cycles and markup fees, are less compatible with the speed required in today’s digital channels. With tools that generate ad copy, optimize bidding strategies, and automate reporting, internal teams can experiment quickly and iterate campaigns in real time.
AI’s role here is twofold: first, by lowering the technical threshold for ad production and optimization, and second, by enabling deeper analysis and performance forecasting. For example, platforms like Rakuten’s RPP (Rakuten Promotion Platform) have implemented AI‑driven auto‑optimization functions that dynamically adjust bidding and placements to improve return on ad spend, showcasing how automation can outperform manual settings.
ネットショップ担当者フォーラム
Similarly, broader industry solutions now exist that automate the end‑to‑end workflow of digital ad execution, from goal setting to actionable insights and creative generation.
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This trend has implications beyond cost savings. In‑house teams gain proprietary first‑party data insights that are increasingly valuable as privacy regulations tighten and third‑party tracking decreases. Internalizing ad operations means companies can develop unique datasets and models that reflect their customers’ behavior and preferences, strengthening audience targeting and personalization. Ironically, the very agencies that once held control over data and creative processes now find themselves needing to offer specialized consulting or technical integration services rather than traditional campaign execution.
However, the transition is not without risk. Many companies lack the internal talent or governance structures to manage complex advertising ecosystems effectively. Internalization requires investments in training, tools, and process redesign. Firms that move too hastily without building a strategic framework may see inefficiencies or inconsistent performance outcomes. The balance between autonomy and expertise remains a core challenge.
Moreover, the narrative around a “Rakuten shock” points to how influential digital platforms shape market expectations. As dominant players like Rakuten push AI solutions deeper into advertising engines and e‑commerce ecosystems, smaller companies feel pressure to adapt or risk losing visibility. Companies such as RIZAP that report high levels of internal ad production represent early adopters; we can expect a spectrum of internalization maturity across different sectors.
In essence, digital advertising is transitioning from a service purchased to a capability built—similar to how firms once brought software development and analytics functions in‑house as cloud platforms democratized technology. The next decade will likely see a blend of internal expertise augmented by specialized partners focused on strategy, data architecture, and advanced AI system integration rather than traditional media placement.
Fact Checker Results:
• Internalization of advertising and use of AI in digital marketing is a real and growing trend in Japan’s marketing ecosystem, with AI tools enabling in‑house production and optimization.
ネットショップ担当者フォーラム
• Rakuten’s digital advertising platforms have adopted AI‑driven features such as automatic campaign optimization to improve performance.
ネットショップ担当者フォーラム
• Solutions exist that support automation of advertising workflows using AI across major digital media channels.
oproduct.ai
Prediction:
Looking ahead, the internalization trend will accelerate as AI capabilities become more accessible and integrated with enterprise data systems. Companies that invest in skilled marketing technologists and robust AI governance will likely outperform peers on customer engagement and return on ad spend. Agencies will evolve into strategic partners focused on high‑value consulting and AI system integration rather than executing routine campaign tasks. By 2028, a majority of mid‑sized firms in competitive sectors may internally manage at least 60 percent of digital advertising functions, transforming the marketing services landscape in Japan and globally.
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Reported By: xtechnikkeicom_064a10052eb11e0f3dc71f99
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