Amazon PPC Match Types: When to Use Exact, Phrase and Broad

The Modern Match Type Framework

Amazon has steadily loosened the definitions of match types over the years. Understanding how the search engine processes these inputs today is crucial for preventing wasted ad spend.

Exact Match: The Surgical Instrument

Exact match gives you the ultimate level of control over your ad placement and cost per acquisition. When you target a term under Exact match, you tell Amazon to show your product only when a shopper's search query matches your keyword almost character-for-character.

When to Use Exact Match

• Organic Ranking Campaigns: When you are fighting for top-of-search placements on your primary, high-volume keywords.
• Brand Protection: To defend your brand name from competitors trying to hijack your customer base.
• High-Conversion Targets: For high-intent, long-tail search terms that consistently convert at a profitable ACOS.

Phrase Match: The Core Modifier

Phrase match requires your targeted keyword phrase to be present in the buyer's search query in the exact order you wrote it. However, shoppers can add words before, after, or within the phrase.

This match type acts as a bridge between the high conversion of Exact match and the discovery potential of Broad match.

The Word Order Exception

While Phrase match traditionally kept your keyword sequence locked, Amazon's algorithm has become more aggressive. If the algorithm determines that a search query shares the same intent as your phrase, it may ignore word order rules.

Use Phrase match to capture specific buying variations of your product without opening the floodgates to completely unrelated searches.

Broad Match: The Research Engine

Broad match is the widest net you can cast. It tells Amazon to show your ad for any search query containing your keyword terms in any order, along with synonyms, spelling errors, and "related" terms.

If you target "leather wallet" on Broad match, Amazon might display your ad to someone searching for "mens money clip" or "vegan card holder."

If you do not manage your Broad match campaigns with an iron fist, your margins will vanish.

Rules for Broad Match Management

1. Lower Your Bids: Never set your Broad match bids equal to your Phrase or Exact bids. Start your Broad bids 30% to 50% lower.
2. Use Broad Match Modifiers (BMM): Place a plus sign (+) directly in front of words that must appear in the customer search query (e.g., +silicone +spatula). This prevents Amazon from matching your ad to completely different materials like wood or metal.
3. Strict Negative List Execution: Run Search Term Reports every 72 hours for new Broad campaigns to identify and block junk traffic.

How to Build a Profitable Keyword Discovery Loop

An efficient PPC account relies on a structured ecosystem where keywords graduate from one stage to the next. You should not run your match types in isolated silos. Instead, treat them as a continuous conversion funnel.

[Broad Campaign] ──► Identify High-Converting Terms ──► [Move to Exact Campaign]
       │                                                         │
       └──► Add as Negative Exact to Broad Campaign ◄────────────┘

The Keyword Escalation Process

Concrete Execution Checklist

If you want to immediately stop ad spend leakage, run this audit across your seller account today:

• Check Bid Hierarchy: Verify that your Exact match keywords have the highest bids, followed by Phrase, and then Broad. If your Broad bids are higher than your Exact bids, manually adjust them down immediately.
• Audit Search Term Reports: Look for keywords in your Broad campaigns that have spent over $15 without a single sale. Add them as negative phrase matches immediately.
• Review Campaign Structure: Ensure you do not mix Exact, Phrase, and Broad keywords inside the same ad group. Keep your discovery match types separated from your performance match types to protect your budget distribution.