- Clean, complete feeds
- Listings and Amazon Ads
- Measured incrementality
Marketplaces · Amazon, Shopping and retail media
Amazon PPC agency for marketplaces and retail media: one version of your product wherever people shop
We are an Amazon PPC agency for marketplaces and retail media, based in Palma de Mallorca. We keep your product data consistent across Google Merchant Center, Amazon and the retailer networks where you sell, and measure which sales are genuinely new.
Personal reply, No obligation, English, Español
What it is
What an Amazon PPC agency with a marketplace remit does
An Amazon PPC agency with a marketplace remit manages what decides whether your product shows up and gets chosen beyond your own site: the Google Merchant Center feed, Amazon listings and A+ content, sponsored ads and retail media networks. It suits consumer brands selling physical products through several channels.
The principle is simple: one version of your product everywhere. Title, price, availability and images must match across your shop, your feed and every marketplace, because the same data feeds Shopping, Amazon and AI shopping surfaces.
Each piece has its own team: Shopping and Performance Max campaigns and bidding sit with Google Ads, the shop itself with ecommerce development, and readiness for AI agents with agent-ready commerce.
In depth
Product feed management and Google Merchant Center: the foundation
A product feed tells Google what you sell, at what price and whether it is in stock, and its quality shapes how visible your catalogue is. We optimise it attribute by attribute, from titles and identifiers to shipping and returns, and fix the errors and disapprovals Merchant Center flags.
Google's guide to AI search, updated in July 2026, says Merchant Center feeds help products appear in AI responses as well as in classic results. On your site, product and merchant listing structured data remain valuable.
As of October 2026, Shopping and Performance Max ads in Spain can show above or below AI Overviews, not inside them. Performance Max now supports campaign-level negative keywords, a search terms report, channel reporting and brand exclusions. If you are looking for a Google Shopping agency, the work is split: we look after the feed and product data here, and our Google Ads team runs the campaigns.
In depth
Amazon: listings, A+ content and sponsored ads
On Amazon, advertising only pays when the listing is ready to sell. Before spending, we review account health, titles, bullet points, images, A+ content, stock, pricing and reviews, known as retail readiness.
We then structure Amazon advertising by goal: Sponsored Products to capture searches with buying intent, Sponsored Brands to introduce the brand, and display and video formats to reach new audiences. Branded, generic and competitor searches are kept apart.
Format names and the Amazon Ads console change over time, so we work with the structure live in your account and check first which brand requirements Amazon sets for A+ content and brand ads. And one clear limit: nobody can guarantee the Buy Box, because Amazon awards it using its own criteria.
In depth
Retail media in Spain: where to invest beyond Amazon
Retail media is advertising sold by retailers and marketplaces on their own sites, apps and stores, next to the moment of purchase. In Spain, beyond Amazon, store-based chains such as Carrefour, El Corte Inglés and MediaMarkt also sell advertising across their channels.
As a retail media agency, we only recommend a network when you already sell through that retailer, have the stock and margin to meet demand, and its reporting lets you check the effect.
Social commerce follows the same logic: TikTok Shop has operated in Spain since 9 December 2024, and its catalogue should draw on the same data. Creators and content run through creators, UGC and social commerce.
In depth
How we measure: incrementality, new customers and total sales
We judge retail media by what it adds, not by what it claims. Incrementality is the causal effect of advertising: the sales that would not have happened without it. That is how the commerce media measurement guidelines published by IAB and IAB Europe in November 2025 define it.
Every platform counts conversions its own way, and an ad on your own brand name can take credit for a sale you would have won anyway. So we read ROAS and ACoS alongside new-to-brand customers and efficiency against total sales, with tests designed alongside our marketing measurement service.
In depth
Your products on AI shopping surfaces
AI assistants and shopping agents recommend products from data they can read: feeds, listings, structured data and reviews. Marketplace work and AI visibility share one foundation: a complete, consistent and current catalogue.
As of October 2026, ChatGPT works as a discovery surface and purchases are completed on the merchant's site, while checkout from Google's AI Mode is offered through US retailers. In Spain, the job today is to prepare your data; our guide to agentic commerce explains how.
What's included
What marketplace and retail media management includes
Six workstreams, switched on to suit your channels and markets.
Catalogue and channel audit
Feed, listings, accounts and current advertising, with errors and opportunities prioritised by impact.
Merchant Center feed and structured data
Titles, attributes, identifiers, shipping and returns in the feed, and consistent product markup on your site.
Amazon listings and A+ content
Titles, bullet points, images and A+ content, written natively for each marketplace.
Amazon advertising
Sponsored campaigns by goal, with negative terms and a budget per product.
Retail media and social commerce plan
Which retailer networks and social channels fit your distribution, and how we test their effect.
Dashboard and reporting
Sales, spend and efficiency by channel and product, with a monthly review and next steps.
How we work
How we work on your catalogue, step by step
The five phases of our method, applied to feeds, listings and campaigns.
Phase 01 / 05
Diagnose
Access to accounts you own and an audit of feed, listings, advertising and measurement.
Phase 02 / 05
Strategy
Which products go to which channel, at what margin and goal, and how each is measured.
Phase 03 / 05
Build
We fix feed and listings before spending. AI speeds up drafts of titles and attributes, and a person reviews them.
Phase 04 / 05
Activate
We launch campaigns by goal, with a weekly review of search terms, bids and stock.
Phase 05 / 05
Measure & improve
Incrementality tests where volume allows, and more products, markets or networks only once the data supports it.
The SERMAN approach
Why run your marketplaces with SERMAN
One source of product data
Feed, listings and social catalogues draw on the same source, so price, stock and messaging match.
Incrementality as proof
We don't add up what each platform reports: we look for sales that wouldn't exist without the spend.
Your accounts, your data
Merchant Center, seller and ad accounts and reports stay in your name. No lock-in.
What it is not
What this service is not
- We don't guarantee the Buy Box, a position on Amazon or Shopping, or a sales figure.
- We don't request or incentivise fake reviews or breach any platform's policies.
- It isn't bid management for Shopping and Performance Max, which our Google Ads service handles.
- It isn't logistics or customer service: no warehousing, shipping or returns.
What we measure
Indicators that show a channel adds value
Feed and listing health
Products approved, disapproved or flagged, and complete listings.
Incremental sales
The estimated causal effect of advertising, tested where volume allows.
New-to-brand customers
Orders from shoppers who hadn't bought from you before in that channel.
Total-sales efficiency
Ad spend against all sales in the channel, organic included (TACoS).
Tools & platforms
Platforms and tools we work with
- Google Merchant Center
- Google Ads
- Amazon Seller Central
- Amazon Vendor Central
- Amazon Ads
- Amazon Brand Registry
- TikTok Shop Seller Center
- Shopify
- WooCommerce
- Google Analytics 4
- Looker Studio
Who it's for
A particularly good fit if…
- You run a consumer brand with physical products: fashion, beauty, home, food, wine or accessories.
- You sell through your own shop and Amazon, and product data doesn't match between channels.
- You invest in sponsored ads and can't tell how many sales are genuinely new.
- Large retailers that stock your brand are offering you ad placements.
Compliance
Rules and policies we apply to your catalogue
Rules we follow by default across feeds, listings and ads; they do not replace legal advice.
Clear prices and information
Spain's LSSI requires clear prices that state whether they include taxes and, where applicable, delivery costs. Feed, listing and page must match.
Environmental claims
EU rules on environmental claims (Directive (EU) 2024/825) have applied since 27 September 2026: we avoid generic terms such as "eco" or "sustainable" unless backed by recognised evidence.
Platform policies and reviews
We follow the policies of Merchant Center, Amazon and each network. In July 2026 Google added a rule against fake and undisclosed incentivised reviews to its review snippet guidelines.
Industries
Where we apply it
Consumer Brands & DTC Ecommerce
Ecommerce marketing for fashion, beauty, home and lifestyle brands: AI-visible products, creative, marketplaces, creators and repeat purchase.
Food, Wine & Gourmet Brands
Provenance-led branding, international SEO, DTC shops, marketplaces and AI visibility for wineries, olive oil producers and food and drink brands.
FAQ
Frequently asked questions
What does an Amazon PPC agency do?
An Amazon PPC agency, also called an Amazon advertising agency, gets your listings ready to sell and manages your sponsored campaigns, bids and reporting on Amazon. As a marketplace agency, ours adds the Google Merchant Center feed and your other channels, so product data matches everywhere.
What is retail media, and which brands is it right for?
It is advertising sold by retailers and marketplaces on their own sites, apps and stores. It tends to suit consumer brands and food and wine producers already stocked by that retailer, with enough stock and margin.
How do you optimise a Google Merchant Center product feed?
Start with errors and disapprovals, then work through the attributes: titles with brand, product type and key features, correct identifiers, clean images, price and availability identical to the page, and shipping and returns set up.
Should I sell on Amazon or only through my own online shop?
It isn't either/or. Amazon reaches people who start their search there; your shop gives you margin, data and a direct customer relationship. The decision is made product by product, weighing fees, fulfilment and control over price.
What is the difference between Google Shopping and Performance Max?
A standard Shopping campaign shows your products mainly in search results and the Shopping tab, with more manual control. Performance Max starts from the same feed and brings Google's channels (Search, YouTube, Display, Discover, Gmail and Maps) into one campaign, with more automation. Our Google Ads team sets up both.
How do my products appear in AI answers?
Through data the systems can read. Google says Merchant Center feeds help products appear in its AI responses. Nobody can guarantee a recommendation; what you can have is a complete, consistent catalogue. Agent-ready commerce goes further.
Related services
Pairs well with
Google Ads Management
Google Ads for the AI Max era: Search, Performance Max and Demand Gen on reliable tracking, in an account you own.
Ecommerce Development & Growth
We build and grow online stores on Shopify, WooCommerce or headless: accessible, fast and with product data ready for Google and AI.
Agent-Ready Web & Agentic Commerce
We make your website, catalogue and checkout readable, comparable and usable by the AI agents that research and act for your customers.
Marketing Measurement: MMM & Incrementality
Lightweight marketing mix modelling, incrementality tests and one triangulated dashboard to show which spend works. Models, code and data stay yours.
Creators, UGC & Social Commerce
Influencer campaigns, UGC for ads and social commerce: vetted creators, clear contracts and every paid partnership disclosed as advertising.
Insights
Go deeper
1 Oct 2026 · 12 min read · Design, web & motion
What is agentic commerce? How to make your website agent-ready
What agentic commerce means, what is actually live in Spain and how to prepare your website and store so an AI agent can read, compare and buy from you.
Contact
Start with a catalogue and channel audit
We review your feed, listings and marketplace advertising, and tell you what we'd fix first.
Personal reply, No obligation, English, Español
Start with SERMAN
Tell us about your project
First conversation
Diagnosis and proposal