How Can I Use SIS to Spot Wasted Ad Spend?
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Quick answer
Search Term Impression Share (SIS) analysis is a method for detecting wasted ad spend in Amazon campaigns by comparing how much you spend on keywords versus how often your ads actually appear for those terms. When spend is high but SIS is low, it signals inefficient budget allocation where ads gain little visibility, suggesting opportunities to redirect funds for better performance.
Many advertisers find themselves spending on Amazon keywords and campaigns that don’t yield enough impressions. By leveraging SIS data, you can reveal those inefficiencies and make sure your budget works harder across your ad strategy.
Understanding SIS and Ad Spend Correlation
SIS represents the percentage of impressions your ads receive compared to the total available for a search term. If a campaign or keyword has significant spend but low SIS, it may be struggling in auctions or facing tough competition—leading to wasted budget. Regularly mapping SIS against your spend data makes these underperformers stand out for further review.
Identifying Wasted Budget within Your Campaigns
Look for search terms or ad groups with high spend and low SIS in your report summaries. These are often areas where your ads rarely surface, consuming resources but failing to maximize their potential. Addressing these areas could involve adjusting bids, tightening targeting, or reallocating budget to keywords with proven reach.
Tools to Simplify SIS Monitoring
Manual analysis can be laborious, especially with multiple campaigns. Platforms like the Amazon Ads Dashboard by Todoza streamline SIS and spend analysis. With consolidated views and drill-down features, you can efficiently surface wasted spend and take corrective action without guesswork.
When Does Wasted Spend Analysis Matter Most?
This type of analysis is particularly important if you manage large budgets, multiple products, or want to boost your overall return on ad spend (ROAS). Regularly reviewing SIS against spend ensures your investments deliver the impressions—and results—you expect.
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Related guides
Integrating SIS review into your workflow supports a more effective, cost-efficient Amazon ads strategy. To dive deeper into SIS, wasted spend, and analysis techniques, explore the full guide on Amazon Search Term Impression Share.