Marketplace Management & Growth
Marketplaces reward operators, not campaigns. Stell Media provides end-to-end Amazon marketplace management and Walmart marketplace management for brands that want to grow marketplace revenue without losing margin. We run listings, advertising, pricing and account health as one connected loop, because on Amazon they are one loop. Our monthly retainer is built for brands with over $1M in marketplace GMV, with first lift in four weeks.
The problem
Why Marketplace Performance Is a Content Problem, Not an Ads Problem
Many brands pour budget into ads while weak listings quietly hold back sales. Ad spend on a weak listing subsidises a weak conversion rate forever. Organic rank on Amazon follows conversion, so listing work compounds over time while ad work does not.
That is why we sequence the work the other way around: content first, then availability, then advertising. Throughout, we monitor account health, because a single suppression can undo a quarter of growth. The result is lower acquisition cost, a protected Buy Box and organic rank you don't have to rent.
What Our Marketplace Management Services Include
Every engagement ships four core deliverables. No line items you cannot point at.
Amazon Listing Optimisation & Rebuild
We rebuild titles, bullet points, A+ Content and backend keywords using category search data and competitor gap analysis. We start with your highest-revenue ASINs, where better visibility and conversion pay back fastest.
Amazon Advertising Management
We manage Sponsored Products, Sponsored Brands and Sponsored Display against contribution margin, not blended ROAS. Campaigns are grouped by shopper intent, with margin data built into the bidding logic, so ad spend supports profitable growth.
Account Health Monitoring
Suppressions, policy violations and stock-outs can erase sales overnight. We monitor your Seller Central and Vendor Central accounts and respond the same day, because the downside is asymmetric.
Buy Box & Pricing Optimisation
Repricing rules and Buy Box diagnostics stop you losing sessions you have already paid to attract, protecting both conversion and margin across Amazon and Walmart.
Our Week-by-Week Marketplace Management Process
Account Diagnostic
Listing quality, ad structure, account health and availability are scored in one report, giving us a clear baseline.
Content First
Your highest-revenue ASINs are rebuilt before any budget change, so ads land on pages that convert.
Ad Restructure
Campaigns are consolidated into intent-shaped groups, with margin data in the bidding logic.
Weekly Operating Loop
Search-term harvesting, listing iteration and health monitoring run on a fixed weekly schedule.
Stack we work in
Platform-agnostic. We work in whatever you already own and tell you honestly when it is the constraint.
Marketplace Management FAQs
Both. The operating models differ enough that we scope them separately. Hybrid accounts get one plan covering the overlap.