BeforeJapanese shoppers searching on google.co.jp search in Japanese. A Shopping ad with an English product title does not keyword-match to the Japanese search query, which suppresses impression share and reduces CTR even when the ad does appear. The feed title and description must be in Japanese to compete with local sellers. This requires translation by someone with e-commerce product copy experience — machine translation of product titles produces grammatically correct Japanese that does not match the way Japanese buyers search for products.
AfterSwitching from English to Japanese product titles on Google Shopping Japan produces an immediate improvement in impression share on Japanese-language queries. The change is visible within the first two to three weeks of a feed update and reflects the keyword-matching improvement rather than any change in bid strategy.
BeforeYahoo Japan holds a significant share of Japanese search traffic, and Yahoo Japan Shopping ads operate entirely separately from Google Shopping. Yahoo Japan Shopping uses its own feed format, its own campaign management interface, and its own bidding system. Brands running Google Shopping in Japan without a Yahoo Japan campaign are leaving a material portion of Japanese Shopping search volume unaddressed. For product categories with strong Yahoo Japan user bases — including electronics, household goods, and fashion — the gap is particularly significant.
AfterAdding Yahoo Japan Shopping campaigns extends reach to the segment of Japanese e-commerce buyers who do not use Google as their primary shopping search platform. For brands in categories with strong Yahoo Japan user bases, the incremental volume from Yahoo Japan Shopping can match or exceed Google Shopping volume within the same budget.
BeforeJapanese e-commerce buyers expect multiple product images showing the item from several angles against a clean white or neutral background, with accurate colour representation. Single-image listings using lifestyle photography are a common pattern for international brands entering Japan, and they consistently underperform against Japanese competitor listings with full studio image sets. High return rates in Japan are frequently attributed to colour or size misrepresentation that accurate product photography would have prevented.
AfterImproving product images to meet Japanese market standards reduces the mismatch between customer expectation and product reality, which reduces return rates for products where images were previously inaccurate or insufficient.
BeforeA common purchase journey for Japanese shoppers involves discovering a product via Google Shopping, researching it further, and then purchasing through Rakuten Ichiba rather than the brand's direct website. Google Shopping conversion tracking records only direct purchases from the brand site. Brands without cross-platform attribution have no visibility into the segment of their Shopping audience that converted on Rakuten, which causes Google Shopping ROAS to appear lower than the actual commercial return and can lead to incorrect decisions about campaign budget and bid strategy.
AfterBuilding Rakuten attribution into the performance framework gives a more accurate picture of Shopping campaign ROI. Brands that discover their Rakuten-attributed conversions are substantial often find that campaigns they considered underperforming were generating commercial return that was simply not being measured.
