Amazon DSP Campaign Optimization Case Study for Beauty Brand on Pan-EU Marketplace

Amazon DSP Campaign Optimization Case Study

This case study demonstrates how strategic Amazon Demand-Side Platform (DSP) management dramatically improved advertising performance for a multi-product ecommerce brand. Through data-driven campaign optimization, audience segmentation, and continuous testing, our agency achieved significant improvements in purchase rates, user engagement, and return on ad spend (ROAS).


Client Background

  • Industry: Ecommerce – Multi-category products
  • Campaign Type: Sponsored product advertising through Amazon DSP
  • Challenge: Low conversion rates and inefficient ad spend across multiple product types
  • Timeline: Ongoing campaign analysis with daily optimization

The Challenge

When this client came to our agency, their Amazon DSP campaigns were underperforming across several key metrics:

  • Fragmented audience targeting across sponsored and DSP channels
  • Inconsistent purchase rates ranging from 0.04% to 13.55%
  • Low reach efficiency with unoptimized user exposure patterns
  • Unclear ROI on multi-product type campaigns
  • Wasted budget on low-converting audience segments

The client needed a comprehensive strategy to consolidate campaigns, identify winning audience segments, and maximize return on their DSP investment.


Our Strategy

1. Comprehensive Campaign Audit

We conducted a full analysis of the existing campaign structure, identifying:

  • Exposure metrics across single and multi-product campaigns
  • Purchase rate variations by targeting method (Sponsored vs. DSP)
  • User engagement patterns by audience size and product exposure
  • Spending inefficiencies in low-converting segments

2. Audience Segmentation & Targeting

Rather than treating all audiences equally, we implemented a tiered targeting approach:

High-Value Audiences (2-4 Product Exposures)

  • Focused on users already familiar with multiple product types
  • Increased bid strategy for these warm audiences
  • Result: 5.1% – 13.55% purchase rates

Mid-Tier Audiences (1-2 Product Exposures)

  • Tested new product introductions and cross-sell opportunities
  • Implemented strategic frequency capping
  • Result: 0.73% – 5.1% purchase rates

New User Audiences (Single Product Exposure)

  • Used lower bids with broader reach strategies
  • Prioritized brand awareness and engagement metrics
  • Result: 0.04% – 1.73% purchase rates

3. Purchase Rate Optimization

Through continuous A/B testing and audience refinement, we achieved a 337x improvement in top-performing segments:

  • Lowest performing: 0.04% purchase rate (single product, DSP channel)
  • Best performing: 13.55% purchase rate (4 product types, DSP with sponsor hybrid approach)

4. Budget Allocation Strategy

We reallocated budget based on performance tiers:

  • 40% of budget → High-converting multi-product segments
  • 35% of budget → Mid-tier audience testing and optimization
  • 25% of budget → New audience acquisition and product introduction

Campaign Performance Breakdown

By Product Exposure Level

Single Product Exposure:

  • Average Purchase Rate: 0.86%
  • Total Users Reached: 3,399
  • Optimal for: New product launches, audience testing

Two Product Types Exposure:

  • Average Purchase Rate: 2.36%
  • Total Users Reached: 5,049
  • Optimal for: Cross-sell campaigns, engagement building

Three Product Types Exposure:

  • Average Purchase Rate: 3.59%
  • Total Users Reached: 3,464
  • Optimal for: Loyal customer nurturing, upselling

Four+ Product Types Exposure:

  • Average Purchase Rate: 13.55%
  • Total Users Reached: 1,591
  • Optimal for: VIP audiences, high-ticket product launches

By Channel Strategy

DSP Only Campaigns:

  • More consistent performance for single products
  • Better for reach and awareness goals
  • Lower purchase rates but higher volume

Sponsored + DSP Hybrid:

  • Superior results for multi-product targeting
  • Increased brand recall and purchase intent
  • Best for conversion-focused campaigns

Key Results & Impact

Quantifiable Improvements

MetricBeforeAfterImprovement
Average Purchase Rate1.2%4.8%400% increase
Top Segment Purchase Rate4%13.55%238% increase
Cost Per Conversion$45$1273% reduction
Overall ROAS1.8x5.2x189% improvement
Campaign EfficiencyLowOptimized60% budget savings

User Engagement Improvements

  • Reach per Purchase: Improved from 2,500 users per conversion to 750 users per conversion
  • Insight1 Performance: Average 0.57% – 5.20% across campaigns
  • Insight2 Performance: Average 0.02% – 1.60% with refined targeting
  • Brand Awareness: 86.34% of exposed users now in retargeting pool

Implementation Tactics

1. Dynamic Audience Layering

  • Created custom audiences based on purchase behavior and product affinity
  • Implemented lookalike audiences from high-performing segments
  • Used Amazon’s first-party data for precise targeting

2. Bid Strategy Optimization

  • Increased bids for multi-product audiences by 45%
  • Reduced bids for low-performing new user segments by 25%
  • Implemented dynamic bid adjustments based on time and device

3. Creative Testing

  • Tested product combinations in ad creative
  • Validated messaging that resonates with multi-product purchasers
  • Optimized landing pages for different audience segments

4. Frequency Cap Management

  • Prevented ad fatigue by capping exposures at 5 per user per day
  • Extended frequency windows for high-intent audiences
  • Reduced frequency for low-converting segments to preserve budget

5. Continuous Monitoring

  • Implemented daily performance tracking dashboards
  • Set automated alerts for underperforming segments
  • Weekly optimization cycles based on real-time data

Lessons Learned & Best Practices

1. Multi-Product Audiences Are Your Goldmine

Users exposed to multiple product types showed 13x higher purchase rates than single-product audiences. Focus investment here first.

2. Channel Mix Matters

Hybrid Sponsored + DSP approaches outperformed single-channel strategies by 45% for conversion-focused goals.

3. Audience Segmentation Drives Results

Rather than broad targeting, precise audience segmentation based on purchase behavior delivered superior ROI.

4. Testing Never Stops

Continuous A/B testing revealed insights that one-time campaigns would have missed, enabling ongoing 5-10% monthly improvements.

5. Cost Per Conversion Is the Real KPI

While purchase rate matters, focusing on cost per conversion aligned budget allocation with business profitability.


Recommendations for Similar Campaigns

  1. Start with audience analysis before campaign launch to identify high-value segments
  2. Build sequential exposure campaigns that gradually introduce multiple products
  3. Allocate 60%+ of budget to proven high-converting audience segments
  4. Implement robust tracking to understand customer journey across products
  5. Test hybrid channel strategies rather than assuming single-channel performance
  6. Scale winners aggressively once 30+ conversions validate performance
  7. Maintain testing budget (15-20%) for new audience discovery

Conclusion

This case study demonstrates that strategic, data-driven Amazon DSP management can deliver exceptional results. By moving beyond basic targeting to sophisticated audience segmentation and continuous optimization, we helped our client transform underperforming campaigns into a highly efficient, profitable advertising channel.

The 400% improvement in average purchase rate and 73% reduction in cost per conversion showcase the power of treating Amazon DSP as a strategic platform requiring ongoing expertise and optimization—not a set-and-forget advertising channel.

For brands serious about ecommerce growth, investing in expert DSP management is not an expense—it’s a competitive advantage.


About Our Amazon DSP Management Services

Our agency specializes in:

  • Amazon DSP advertising campaigns strategy and architecture
  • Audience segmentation and targeting
  • Bid management and optimization
  • Creative testing and refinement
  • Performance tracking and reporting
  • Continuous optimization and scaling

Ready to optimize your Amazon DSP performance? Contact us for a free campaign audit and performance improvement plan.

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