Google Shopping and Shopping Ads formats are expected to expand to Bulgaria in autumn 2026, based on the announced second EMEA wave. That means the Shopping product cards, which until now have not reached Bulgarian results, are set to gain a localized presence just before Black Friday and the holiday shopping season. The Google Merchant Center platform itself has been around for years and is already accessible to Bulgarian merchants, but without market localization the product listings do not surface for Bulgarian queries. This article is a practical guide to what to do in the months ahead so you meet the expansion prepared and do not miss the most active commercial quarter of the year.
Table of Contents
- Google Merchant Center and Why Bulgaria Is Next in Line
- Expansion Schedule: The Second EMEA Wave
- The Euro Connection: Why Currency Unlocks the Market
- CSS Association: What It Is and When an External Partner Makes Sense
- Product Feed: Required and Recommended Attributes
- Technical SEO Foundation Before Launching Shopping
- Preparation Checklist from May to October 2026
- First 90 Days After the Expansion: What to Watch
- Frequently Asked Questions
Google Merchant Center and Why Bulgaria Is Next in Line
Google Merchant Center is a free Google platform where online stores upload and maintain a product feed - a structured file with data for each item, including title, description, price, availability, category, and image. That feed powers both paid Shopping ads in Google Ads and free product listings in the Shopping tab. Without an active Merchant Center account, your products cannot appear in the product cards that shoppers see above the organic results.
Merchant Center in plain terms
Merchant Center sits between your store and Google's shopping surfaces. It validates your data, flags policy issues, syncs prices and stock, and decides whether a product is eligible for Shopping placements. Once approved, the same product is reused across paid ads, organic listings, and AI-powered product comparisons.
Why Bulgarian merchants could not use it fully until now
To date Bulgaria sits outside the list of markets with active Shopping ads. Local retailers could open Merchant Center accounts, but without market localization the product cards never showed up in Bulgarian results. Merchants who wanted product visibility in Google advertised through neighbouring markets in other currencies, or relied solely on organic rankings and text ads.
What changes after the expansion
With the planned expansion, product cards are set to begin appearing directly in Bulgarian results, for Bulgarian queries, with prices in euro - the country's primary currency after the changeover. That means a fresh stream of high-intent traffic, a new format for remarketing through Performance Max, and a new competitive landscape where better-prepared stores will capture a noticeably larger share of visibility.
Expansion Schedule: The Second EMEA Wave
Bulgaria is part of the second wave of Google Shopping expansion across fifteen new EMEA markets, scheduled for the run-up to the 2026 holiday season according to Google's announced timeline. Alongside Bulgaria the wave is expected to cover Croatia, Lithuania, Slovenia, Serbia, Bosnia and Herzegovina, Montenegro, Estonia, and Latvia. The first wave, scheduled for the run-up to back to school 2026, includes Cyprus, Luxembourg, Moldova, North Macedonia, Malta, and Liechtenstein.
Two-wave rollout plan
Splitting the rollout across two waves lets Google calibrate localization, indexing, and ad delivery before the heaviest traffic of the year. Wave one tests the system in smaller markets through summer; wave two then rides the holiday wave with a more mature platform. Bulgaria is intentionally placed in the second cohort to coincide with the strongest ecommerce quarter.
Timing of the expansion explained
The schedule is shaped by peak commercial activity. Black Friday, Cyber Monday, and the gift-buying season concentrate a meaningful share of annual online sales into a single quarter. An expansion late in the year gives merchants several weeks to calibrate before the heaviest traffic and gives Google a real environment with high volumes in which to validate the new locale.
Implications for local retailers
Preparation time is shorter than it appears. Between the announced timeline and the actual expansion sit a few months in which technical integrations, feeds, and product pages must be finished. Stores that begin work in summer will be ready. Those who leave everything for September risk missing Black Friday and handing the advantage to faster competitors.
The Euro Connection: Why Currency Unlocks the Market
One of the key factors behind Bulgaria's late entry to Google Shopping is the adoption of the euro. As of 1 January 2026 Bulgaria became the twenty-first member of the eurozone, with a fixed conversion rate of EUR 1 = BGN 1.95583. A standardized currency simplifies pricing, tax setup, and exchange with international stores already on the platform.
Currency standardization inside Merchant Center
Currency standardization in the Merchant Center context means alignment between the currency in the feed, the currency on the landing page, and the currency of the target market. Before euro adoption, Bulgarian stores that wanted to advertise abroad had to maintain parallel prices and feeds in different currencies, which made operations slower and more expensive.
Dual-pricing transition period
Under the dual-display rules in force in Bulgaria, prices are shown in both leva and euro from 8 August 2025 to 8 August 2026. After that date the euro becomes the primary display currency. Many stores still treat dual pricing as a checkout-only requirement, but it should be rolled out across the entire catalogue, including category pages, basket, and order confirmation emails.
Pricing in your store: what to do
After 8 August 2026 the euro is the primary market currency, and the focus should be on consistent euro display across the entire store. The Merchant Center feed must be in euro. The product page, the schema markup, the basket, and checkout must use the same currency. Mismatches between feed currency, page currency, and JSON-LD currency lead to automatic product blocking. This is one of the most common technical errors in the first weeks after expansion, and it is easy to prevent with a clean checklist and a single source of truth for prices.
CSS Association: What It Is and When an External Partner Makes Sense
A Comparison Shopping Service, or CSS, is a price-comparison service through which an online store participates in Google Shopping inside the European Economic Area. Since 2017, by decision of the European Commission, Google allows Shopping ads in the EEA only through a CSS association, not entirely directly from Google Ads. The rule applies in all EEA markets, the United Kingdom, and Switzerland, including Bulgaria.
Role of a CSS in the Shopping auction
A CSS uploads a product feed to Merchant Center and bids on the merchant's behalf in the Shopping auction. There are two paths - run your own CSS if the store has the capacity for integration and support, or pick an external CSS partner. Both options satisfy the CSS association requirement. Using an external partner is a strategic choice based on budget, scale, and support level, not a mandatory step for every store.
Cases where an external CSS partner makes sense
External CSS partners typically operate at a lower cost-per-click than the default Google CSS, because they receive a discount from Google and pass part of it to the merchant. This is especially useful for stores with substantial media budgets where even a few percentage points on click cost translate to meaningful savings. Stores with limited budget, limited integration resources, or unclear scaling goals often start with the default Google CSS and revisit the need for an external partner later.
Choosing a CSS association for the Bulgarian market
Before the expansion, check whether your chosen CSS association supports the Bulgarian market, what fees apply, how charges work - a percentage of ad spend, a fixed monthly fee, or a hybrid - and what level of technical support is offered. For stores starting from zero, a sensible practice is to test with a few product groups in the first weeks and scale only after the feed quality stabilizes.
Common fee models with CSS partners
Most CSS partners use one of three pricing patterns: a percentage cut from media spend, a flat monthly retainer, or a hybrid that combines a small base fee with performance-based components. Larger stores with stable budgets often prefer flat fees for predictability; smaller stores benefit from percentage models that scale with their spend.
Product Feed: Required and Recommended Attributes
The product feed is the heart of Google Merchant Center. The quality of the data inside it decides whether your products clear moderation, how they rank in Shopping, and how well they perform inside Google's new AI-powered product surfaces.
Minimum data set for every product
For most categories Google requires a unique product identifier through a combination of brand, gtin, or mpn. Title, description, product link, image link, price, currency, and availability are also mandatory. Without these fields the product is not approved and is not shown anywhere. Recommended fields such as size, colour, material, and gender improve targeting and matter especially for apparel and footwear.
Images: the 500 by 500 rule
From 14 April 2026 Google shows warnings for products with images smaller than 500 by 500 pixels, and from 31 January 2027 the rule becomes a hard requirement. For Bulgarian stores that often rely on smaller images from older photo shoots, this means a full review of the entire product gallery. The recommendation is at least 800 by 800 pixels, a white or neutral background, and no watermarks or promotional overlays on the image itself.
Titles and descriptions that work for the algorithm
In the product title Google prioritizes brand, product type, and key attributes such as size, colour, and material in the first 70 characters. AI-driven Shopping results use the start of the title as the primary relevance signal. The description should answer the same questions a customer would ask a sales assistant in a physical store: materials, care, sizing, compatibility, warranty.
Video in the product feed
From 30 June 2026 Google rolls out a new video_link field in the product feed. Stores already shooting short demos or unboxing clips for social channels have a natural advantage - those videos can be reused inside Shopping. Video is not mandatory, but it adds visual depth to product cards and improves behavioural signals on landing pages.
Technical SEO Foundation Before Launching Shopping
Without a healthy technical SEO foundation, Shopping will not deliver the results you expect. Google treats product pages as part of the overall offer quality, and shoppers abandon slow or awkward stores within seconds.
Site speed and Core Web Vitals
A large share of Shopping traffic arrives on mobile devices, often over slower connections. A slow product page kills conversion before the user reaches the buy button. Recommended thresholds are LCP under 2.5 seconds and INP under 200 milliseconds. If you have not run a technical audit yet, start there. The same fundamentals that matter for Shopping are covered in our material on what makes an effective business website.
Schema markup and feed alignment
Google encourages stores to publish Schema.org product markup on product pages that matches the data in the feed. When the two sources agree, products have a higher chance of rich results in organic search and inclusion in AI answers. For a practical primer see our guide on using schema markup for better SEO. Mismatches between price in JSON-LD and price in the feed are a common cause of product disapproval.
Category architecture and site structure
A logical category hierarchy helps both Google and the shopper. Each category needs a unique title, description, and a set of products that genuinely belong to it. Duplicate or empty categories are signals of low quality that affect both organic visibility and feed approval, so resist the temptation to create SEO-only collections that mirror existing ones.
Preparation Checklist from May to October 2026
Preparation for Google Shopping is done in stages, not in one sweep. If you start now, you have around five months until the expansion - more than enough to clean each layer slowly and systematically.
May and June: audit and plan
Begin with a full technical audit - speed, mobile experience, indexing, duplicate titles, schema errors. In parallel open a Google Merchant Center account, even without activating ads, and start testing feed uploads. Connect it to Google Ads and Search Console. If your store is large, review the product data in the ERP or PIM system to find gaps in gtin, brand, or key attributes.
July and August: feed and images
This is the heavy-lifting stretch for the feed. Standardize titles to the brand plus type plus key attributes pattern. Replace older images with at least 800 by 800 pixel versions. Add missing gtin or mpn codes. Test the feed in a sandbox Merchant Center account, fix errors and warnings. At the same time, do a first review of CSS options and start negotiations with a chosen partner.
September: integration and rehearsal
By September you should have a working Merchant Center account with an approved feed, active schema on the site, and a Performance Max or Shopping campaign ready to launch. This month is for rehearsing remarketing audiences, dynamic banners, GA4 transaction tracking, and A/B tests of product titles. If you plan seasonal promotions for Black Friday, load the data early so it clears moderation in time.
From October onward: optimization in real time
After the expansion the work only begins. The first two weeks are about monitoring approved and disapproved products, CTR and CPC by product group, and the gap between Shopping and organic traffic. From there come edits to titles, prices, and bidding strategies. The settings that work in peak traffic are not the same as those that work in calmer periods - be ready to adjust every week.
First 90 Days After the Expansion: What to Watch
The first three months of Google Shopping in Bulgaria will be a learning period for everyone - Google, the merchants, and the shoppers. Do not expect immediate parity with mature markets like Germany or the United Kingdom, but do not underestimate how quickly local users adapt to the new product cards.
Competitive landscape and pricing
In the early weeks CPCs will be relatively low, because few stores will be ready. As participation grows and Black Friday approaches, expect a sharp rise in click costs in the most competitive categories - electronics, fashion, beauty. Stores with stronger product pages and higher conversion rates will hold their margins; those competing only on price will feel the pressure first.
Metrics to track closely
Beyond the standard CTR, CPC, and ROAS, keep an eye on Search Impression Share by product group, the share of disapproved products in the feed, and the split of traffic between Shopping and organic. Behavioural signals like bounce rate from Shopping traffic on product pages are useful too - they often expose a mismatch between the promise on the product card and the actual landing experience. For a wider view of how paid and organic channels reinforce one another see our piece on how Google Ads and SEO work together.
Tie-in with the broader SEO strategy
Shopping does not replace SEO - it doubles the need for it. Stores with strong organic presence enjoy cheaper traffic than the paid channel and steadier behavioural signals that also help in the Shopping auction. If you want a systemic plan to prepare your store organically, read our overview of SEO strategy in 2026 and align the plan for Google Ads alongside it rather than against it.
Frequently Asked Questions
Below are the questions Bulgarian merchants ask most often around the Google Shopping expansion. The answers are short, but each one points to a topic that deserves dedicated attention in your store.
When is Google Shopping expected in Bulgaria
According to Google's announced schedule, the format is expected to reach Bulgaria in autumn 2026 as part of the second EMEA wave, ahead of the holiday shopping season. The exact date may be clarified by Google closer to the expansion.
Do I need a separate Google Ads account for Shopping
No. Shopping campaigns run inside the same Google Ads account that hosts your text ads. You need a Merchant Center connected to Ads, and a CSS platform.
Can I sell on Google Shopping without a CSS
In the EEA, including Bulgaria, paid Shopping ads require a CSS association. This can be an external partner or your own CSS - both options satisfy the requirement. Free product listings have lighter conditions, but they also flow through Merchant Center.
How much does participating in Google Shopping cost
Free listings have no media cost. Paid ads run on a cost-per-click model in Google Ads, plus a commission or fee to your CSS partner. Real costs depend on the category, competition, and the quality of the feed. For a closer look at why budget alone does not solve everything, our analysis of why an online store loses sales before advertising is a useful read.
Connection between Shopping and store SEO
Shopping and SEO share the same technical foundation - clean product data, fast pages, and a healthy Schema.org layer. If you plan to strengthen organic rankings in parallel, our guide to ecommerce SEO in 2026 covers how AI Overviews and product schema shape the new visibility.
Where can I find Google's official requirements
The first source of truth for technical rules and feed requirements is the official Google Merchant Center help, which is updated frequently and contains the most recent deadlines and specifications.
In Short: Preparation Starts Now
The expansion of Google Shopping to Bulgaria is one of the most important events for the local online market in years. Stores that begin preparation in spring and summer will meet the autumn with an approved feed, clean product pages, and live Shopping campaigns. Those who delay will face approvals, feed errors, and technical debt during the busiest period of the year. If you want to walk through the preparation with a team that knows both the SEO foundation and the paid channels, we can help with audits, feed optimization, and the build or revision of online shops as a service.
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