
Many sellers experience anxiety when monitoring their Amazon advertising metrics, particularly ACOS (Advertising Cost of Sale) and ROAS (Return on Advertising Spend). But what constitutes a healthy ratio? How can advertisers ensure their investments translate into genuine profit growth? This article examines key considerations for maximizing advertising efficiency on Amazon.
ACOS/ROAS: No Universal Benchmark Exists
The search for a "perfect" ACOS or ROAS value proves futile, as no universal standard applies across all products or sellers. These metrics' viability depends on multiple factors:
- Product pricing: Higher-priced items typically tolerate greater ACOS due to larger profit margins.
- Production costs: Lower-cost products permit higher ACOS thresholds.
- Shipping expenses: Logistics costs directly impact profit calculations.
- Operational overhead: Staff salaries, storage fees, and other expenses affect break-even points.
Calculating precise break-even points becomes essential. Sellers must account for all costs when establishing appropriate ACOS/ROAS targets.
New product launches often exhibit elevated ACOS as advertising drives initial exposure and data accumulation. With satisfactory conversion rates, increasing order volume typically reduces CPC (Cost Per Click), stabilizing ACOS over time. Mature products should maintain consistent ACOS levels.
Automatic Campaigns: Mining High-Performance Keywords
Automatic advertising serves as an efficient method for discovering potential keywords. These campaigns generate extensive keyword data, including high-performing terms suitable for manual campaign expansion.
Effective keyword selection criteria include:
- High impressions: Indicates broad audience reach.
- Strong click-through rates: Reflects listing relevance.
- Conversion efficiency: Ultimately determines keyword value through actual sales generation.
Amazon's "Placement Report" and "Search Term Report" provide valuable data for analysis. Established sellers should prioritize conversion rates and ACOS when evaluating keywords, while considering campaign budgets when selecting terms for manual campaigns.
Keyword Negation: Strategic Considerations
A common dilemma involves whether to negate manual campaign keywords in automatic campaigns. Generally, negation proves unnecessary because:
- Budget independence: Automatic and manual campaigns operate with separate budgets, preventing competition for traffic.
- Relevance verification: Negating successful automatic campaign keywords may disrupt Amazon's algorithm in assessing listing relevance and optimizing future placements.
Time-Based Bidding: Precision Optimization
Performance analysis often reveals predictable sales patterns—seasonal fluctuations, weekly cycles, or daily variations. Time-based bidding strategies can capitalize on these trends:
- Increase budgets and bids during peak periods to maximize visibility.
- Reduce bids (without pausing campaigns) during slower periods to control costs.
Amazon's "Budget Rules" feature or third-party tools can automate these adjustments. Moderate bid reductions prevent campaign disruption while improving overall ACOS performance.
Effective Amazon advertising requires continuous testing, analysis, and refinement. By understanding these fundamental principles, sellers can develop customized strategies that align with their specific products and business objectives.