How to Perform Root Cause Analysis on Declining Amazon Campaigns

Root cause analysis for declining Amazon campaigns is a systematic process aimed at diagnosing the underlying factors behind performance drops, such as rising costs, reduced sales, or wasted ad spend. By examining essential elements like search terms, conversion data, and campaign settings, marketers can uncover actionable insights to correct course and regain ad momentum.

Uncover inefficiencies and boost your Amazon ad performance effectively.

If your Amazon ad campaigns aren’t performing as expected, acting fast to diagnose the causes protects spend and improves profitability. Root cause analysis allows sellers and marketers to break down all aspects of their campaigns and restore them to growth. This guide will walk you through practical steps for an effective Amazon PPC trouble-shooting workflow.

What You'll Need

Amazon Negative Keyword Tool by Todoza – Tool designed to analyze Amazon ad search terms for improved campaign efficiency.
Access to Amazon Ads Search Terms and Campaign Performance reports
Ability to adjust campaign settings and budgets within Amazon Ads dashboard
Spreadsheet program (e.g. Excel, Google Sheets) for custom data analysis (optional)

Why It Pays to Use Structured Tools for Root Cause Analysis

Manual analysis of Amazon campaigns can be time-consuming and prone to oversight. Harnessing purpose-built tools like the Amazon Negative Keyword Tool by Todoza delivers clarity faster, minimizes human error, and accelerates your ability to act on performance data across multiple campaigns or marketplaces.

Step 1: Examine Key Performance Metrics

Begin your root cause analysis by examining campaign-level metrics such as impressions, clicks, spend, sales, ACOS (Advertising Cost of Sale), and ROAS (Return on Ad Spend). Compare current data trends against your historical benchmarks. Spotting deviations in these stats can highlight inefficient campaign performance at the earliest stage. Also, review if dips coincide with recent changes to product listings or seasonality.

Step 2: Analyze Search Terms and Conversion Data

Next, dive deeper into your Search Terms report. Identify which search terms bring traffic and which are not converting to sales, increasing wasted spend. Focus on signals such as cost per click, click-through rate, and conversion rate for each term. By isolating search terms, conversion rates, and budget allocation, you can pinpoint where your spend is being wasted.

For a structured approach, use the Amazon Negative Keyword Tool by Todoza to streamline this analysis across multiple campaigns. This tool classifies search terms by campaign-specific signals and supports efficient review—especially helpful if managing complex account structures or multiple marketplaces.

Step 3: Identify Wasted Spend and Negative Keywords

Once you've marked underperforming search terms, aggregate the data to reveal overlapping patterns. Terms with high spend and low conversion are strong candidates for negative keyword action. Add these to your campaigns' negative keyword lists to immediately reduce wasted budget. The Amazon Negative Keyword Tool by Todoza's cleanup workflow is particularly useful here, as it enables you to flag and classify terms systematically for exclusion or bid reduction.

Step 4: Check Budget Caps and Campaign Settings

Confirm that your daily budgets and bids align with your ad goals. Misconfigured caps or incorrect targeting settings can cause abrupt changes or missed opportunities. Look for recent adjustments or overlaps between ad groups that might have caused internal competition and common triggers for ad decline. Adjust campaign settings where required, based on data-supported findings.

Step 5: Implement Corrections and Monitor Outcomes

Finally, apply the corrective actions—negative keyword additions, bid adjustments, or updated campaign structures. Set checkpoints to re-evaluate your main metrics after changes take effect. Monitor for improvement, and fine-tune as necessary. The key is to refine your campaigns based on evidence instead of relying on guesswork for future success.

Tips, Common Mistakes, and Troubleshooting

Always document each step of your analysis for future reference. Avoid making too many changes at once so you can accurately measure their impact. Failing to review search terms regularly or overlooking incremental shifts in keyword performance are frequent mistakes. If performance remains suboptimal, further segment campaigns or seek advanced analytics tools for deeper insights.

Common Root Cause Analysis Triggers in Amazon Ads

Performance drops can stem from marketplace changes, increased competition, product availability shifts, or targeting misalignments. Recognizing these recurring patterns allows campaign managers to address core issues rather than surface-level symptoms, ensuring your corrective actions achieve long-term results.