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
| Metric | Before | After | Improvement |
|---|---|---|---|
| Average Purchase Rate | 1.2% | 4.8% | 400% increase |
| Top Segment Purchase Rate | 4% | 13.55% | 238% increase |
| Cost Per Conversion | $45 | $12 | 73% reduction |
| Overall ROAS | 1.8x | 5.2x | 189% improvement |
| Campaign Efficiency | Low | Optimized | 60% 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
- Start with audience analysis before campaign launch to identify high-value segments
- Build sequential exposure campaigns that gradually introduce multiple products
- Allocate 60%+ of budget to proven high-converting audience segments
- Implement robust tracking to understand customer journey across products
- Test hybrid channel strategies rather than assuming single-channel performance
- Scale winners aggressively once 30+ conversions validate performance
- 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.