Search Term Harvesting: How to Move Winning Keywords Up the Funnel

What Is Search Term Harvesting?

Every time a customer searches on Amazon and your ad shows, Amazon records the exact phrase they typed. This is your search term data — and it's a goldmine. Some of those search terms you already know about and bid on. Most, you don't.

Harvesting is the process of reviewing this data weekly, identifying terms that convert well, and promoting them from your auto or broad campaigns (where you discovered them) into your phrase or exact match campaigns (where you can control them precisely).

Without harvesting, your account stays the same size forever — bidding on the same keywords you started with. With harvesting done consistently, accounts grow their exact match keyword base 4–6× in the first year, compounding conversion velocity and organic rank.

The Harvest Criteria

Not every converting term should be harvested. Use these thresholds as a starting point:

• Promote to phrase match: 5+ conversions at ACOS below 1.5× target in the last 30 days
• Promote to exact match: 10+ conversions at ACOS below target in the last 45 days
• Add to negative list: 15+ clicks, 0 conversions, spend above ₹150
• Watch list (do not harvest yet): 3–5 conversions, ACOS below target — needs more data

Adjust these thresholds based on your product's price point and typical monthly order volume. High-ticket products with lower conversion volumes need lower click thresholds; fast-moving products can afford stricter criteria.

The Harvesting Workflow

Step 1: Pull the Search Term Report

Go to Sponsored Products → Reports → Search Term Report. Run for the last 30 days. Download as CSV. Filter for campaigns you want to harvest from (typically auto and broad).

Step 2: Sort and Categorize

Sort by conversions descending. Work through the list and tag each term: Promote to Exact, Promote to Phrase, Add as Negative, Watch, or Ignore.

Step 3: Add to Exact/Phrase Campaigns

For terms you're promoting, add them as new keywords to the appropriate campaign tier. Set the initial bid using the formula: Target ACOS × CVR × Price = Target CPC, using the CVR from the search term report data.

Step 4: Add Negatives to Source Campaign

Once a term is promoted to exact match, add it as a negative exact to your broad and phrase campaigns. This prevents the term from appearing in multiple campaigns and ensures traffic flows through the exactly-managed keyword.

Long-Tail Harvesting: Where the Margins Hide

Most sellers focus harvesting on high-volume head terms. The smarter play is systematic long-tail harvesting. Long-tail search terms (4–6 words, highly specific) typically have 40–60% lower ACOS than head terms, because search intent is higher and competition is lower. A catalogue of 200+ harvested long-tail exact match keywords often generates 30–40% of total ad revenue at half the blended ACOS of head terms.

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