Unified Marketplace case study

Scaling Across Europe and Extending into Walmart with a Unified Marketplace System

Ninja is a globally recognized brand in kitchen appliances, known for strong product innovation and strong consumer demand. As Ninja expanded into Europe, the challenge was not demand generation. It was coordinating marketplace performance across regions and channels. Eva partnered with Ninja to build a unified marketplace growth system centered on Amazon, supported by paid media and data-driven decision making. Once the system was established, the same framework was extended into Walmart US as a marketplace expansion layer.

Ninja case studyOther

The opportunity

Turn channel activity into one connected growth system

Ninja is a globally recognized brand in kitchen appliances, known for strong product innovation and strong consumer demand. As Ninja expanded into Europe, the challenge was not demand generation. It was coordinating marketplace performance across regions and channels. Eva partnered with Ninja to build a unified marketplace growth system centered on Amazon, supported by paid media and data-driven decision making. Once the system was established, the same framework was extended into Walmart US as a marketplace expansion layer.

Ninja is a globally recognized brand in kitchen appliances, known for strong product innovation and strong consumer demand. As Ninja expanded into Europe, the challenge was not demand generation. It was coordinating marketplace performance across regions and channels. Eva partnered with Ninja to build a unified marketplace growth system centered on Amazon, supported by paid media and data-driven decision making. Once the system was established, the same framework was extended into Walmart US as a marketplace expansion layer.

The situation

The operating challenge behind the growth opportunity

  • Core issue: Ninja entered European markets with strong brand equity and demand, but faced structural complexity
  • Fragmented Amazon execution across countries
  • Disconnected performance between marketplaces and paid media
  • Rising advertising costs without unified optimization
  • Limited visibility into profitability at SKU level
  • No coordinated strategy across regions

The challenge was coordination at scale.

  • Amazon performance varied by region without shared intelligence
  • Advertising lacked unified allocation logic
  • DSP and Sponsored Ads were not fully integrated
  • Inventory, pricing, and ranking strategies were disconnected

This created inefficiencies and limited scalable growth.

Eva implemented a unified marketplace intelligence system across Europe.

Ninja on TikTok

The brand voice in motion

Three videos from the official brand account show how product storytelling and social discovery create demand before shoppers reach a marketplace or brand storefront.

Ninja in motion
Ninja in motion
Ninja in motion

Visit @ninjakitchen on TikTok

The Eva approach

One plan, clear priorities, and shared performance signals

Amazon Intelligence + DSP Activation

  • Full-funnel Amazon advertising strategy
  • Sponsored Ads and DSP integration
  • Market-specific keyword and ranking strategies
  • Listing and conversion optimization by region

Result: stronger demand capture and improved ranking velocity

Paid Media Orchestration

  • Cross-channel budget allocation based on performance
  • Creative and audience testing across markets
  • Alignment between paid media and Amazon performance

Result: improved efficiency and scalable acquisition

Unified Product Intelligence Layer

  • Centralized visibility into revenue, spend, and profitability
  • SKU-level performance tracking across markets
  • Real-time data-driven decision making

Result: faster optimization and more effective capital allocation

90-day execution roadmap

From fragmented execution to one operating cadence

The first 90 days establish the baseline, activate the connected system, and scale the combinations that improve international expansion.

Days 1–30

Build the foundation

Create one commercial baseline across Amazon + Walmart.

  • Map product and channel economics
  • Audit conversion, demand, and inventory
  • Align the operating scorecard
Days 31–60

Activate the system

Implement the highest-value initiatives documented in the Eva approach.

  • Connect channel signals and decisions
  • Improve conversion and demand capture
  • Coordinate content, media, and operations
Days 61–90

Scale what compounds

Move investment toward the products, audiences, and channels producing the strongest business result.

  • Reallocate toward winning combinations
  • Protect margin and availability
  • Build the next optimization cycle

Results and measurement

The scorecard that connects growth to business impact

Verified outcomes and operating signals already documented in the original case study, organized into one consistent scorecard.

+42%increase in total European revenue
+35%growth in Amazon sales across key markets
+28%improvement in blended ROAS across paid media

The outcome

What the connected system changed

Growth was no longer fragmented by region. It became coordinated and scalable across markets and platforms.

Before and after

Before Eva

  • Country-by-country execution
  • Limited coordination across Amazon markets
  • Inefficient advertising allocation
  • Fragmented data and delayed insights

After Eva

  • One unified marketplace system centered on Amazon
  • Real-time optimization across regions
  • Integrated advertising and ranking strategy
  • Scalable and controlled international growth
  • Seamless expansion into Walmart without rebuilding infrastructure

“Our challenge in Europe was not demand. It was coordination across markets, channels, and data. Each region was operating, but not in sync. Eva brought structure to our Amazon strategy and connected performance across markets, which immediately improved efficiency and visibility. We were able to make faster decisions, allocate budgets more effectively, and scale with greater control. What made the difference was not just execution, but the system behind it. Once that system was in place, extending into Walmart became a natural next step. We did not need to rebuild anything. The same intelligence, assets, and approach carried over, allowing us to activate Walmart quickly and efficiently. Eva helped us move from fragmented execution to a coordinated, scalable marketplace strategy.”

Anissa Bégin

Shark/Ninja Director of Marketplaces

Amazon growth is not ad spend

It is a system where ranking, demand generation, and conversion work together to scale profitably

Strategic insight

Growth compounds when every channel has a clear job

Marketplace expansion does not fail due to lack of demand. It fails due to lack of coordination. Once Amazon performance is structured, expansion into Walmart becomes execution, not experimentation.

When marketplaces operate independently:

  • Spend increases
  • Efficiency declines
  • Growth becomes inconsistent

When marketplace signals are unified:

  • Ranking strengthens across regions
  • Advertising becomes more efficient
  • Expansion becomes predictable

Build one connected commerce growth system

Talk with a senior Eva operator about marketplace growth, paid demand, conversion, operations, and the measurement system that connects them.

Talk to a senior expert