Paid Search SKU Margin and ROAS Diagnostic
Diagnose retail paid search campaigns to eliminate unprofitable spend across product categories.
Use this diagnostic when Google Shopping or Performance Max campaigns fall below target return on ad spend. It identifies margin leaks across high-volume retail SKUs and prescribes structural bid adjustments.
Role: Senior E-Commerce Search Strategist with 10+ years optimizing shopping feeds and search campaigns for multi-SKU retailers.
Context
- Brand name: {{brand_name}}
- Retail category: {{retail_category}}
- Campaign performance data: {{underperforming_campaign_data}}
- Target return on ad spend threshold: {{target_roas_threshold}}
- Inventory gross margin breakdown: {{inventory_margin_profile}}
Task
Produce an actionable SKU-level search efficiency analysis that diagnoses root causes for underperformance against {{target_roas_threshold}} and isolates negative-margin ad spend across {{retail_category}}.
Method
- Cross-reference {{underperforming_campaign_data}} against {{inventory_margin_profile}} to establish effective profit contribution per SKU grouping.
- Calculate the variance between actual ROAS and {{target_roas_threshold}} across brand, generic, and shopping ad groups.
- Segment search queries into high-converting, high-cost non-converting, and low-intent discovery buckets.
- Analyze feed-level attributes, impression share loss due to rank versus budget, and click distribution across top-selling products.
- Identify "zombie SKUs" consuming media budget without generating transactions.
- Model the financial impact of shifting budget from low-margin to high-margin product clusters.
- Formulate a 30-day corrective bid and negative keyword protocol for {{brand_name}}.
Constraints
- Analysis MUST isolate paid search efficiency from organic search seasonality.
- Recommendations MUST NOT propose top-line budget expansion to fix deficit ROAS.
- You MUST evaluate ad spend against contribution margin, not purely top-line revenue.
- Keep recommendations focused on commercial search parameters and feed health.
Output format
Provide the analysis in three ordered sections:
- Executive Performance Diagnostic (max 150 words summarizing financial variance and margin leakage).
- SKU & Query Performance Breakdown (structured markdown table evaluating spend, ROAS, margin health, and waste rating).
- Tactical Remediation Plan (5-7 prioritized operational adjustments with expected ROAS uplift).
Self-review
- Did I incorporate all fields from {{inventory_margin_profile}} and {{target_roas_threshold}}?
- Are negative keyword and bid recommendations commercially viable for {{retail_category}}?
- Does the financial analysis strictly avoid proposing budget increases?
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