Choosing the wrong match type is one of the fastest ways to waste Amazon ad spend. You either pay for irrelevant clicks or miss the shoppers most likely to buy.
This guide covers every targeting option in Amazon PPC: auto campaign sub-types, manual keyword match types (broad, phrase, exact), ASIN targeting, and negative keywords. If you're new to Amazon ads, start with our beginner's guide to Amazon PPC.
Why Match Types Matter
Match types control the relationship between your bid and the search terms or product pages that trigger your ad. Each one trades reach for precision.
| Match Type | Reach | Relevance | Best Use Case |
|---|---|---|---|
| Auto - Loose | Widest | Lowest | Discovery, new products |
| Auto - Close | Wide | Medium-High | Finding relevant terms |
| Auto - Substitutes | Medium | High | Competitor product pages |
| Auto - Complements | Medium | Medium | Cross-category visibility |
| Broad (Manual) | Wide | Medium | Keyword expansion |
| Phrase (Manual) | Medium | High | Specific intent |
| Exact (Manual) | Narrow | Highest | Proven, profitable keywords |
| ASIN Targeting | Precise | Very High | Competitor, cross-sell, up-sell |
Part 1: Auto Campaign Match Types
In a Sponsored Products auto campaign, Amazon matches your ad to search queries and product pages based on your listing. Targeting is split into four sub-types, and each one serves a different purpose.
Auto campaigns are your discovery tool. They surface search terms you wouldn't think to target, often long-tail terms with high intent and lower competition. Most mature accounts keep one running continuously.
Loose Match shows your ad for searches loosely related to your product, including synonyms and adjacent terms. It gives the widest exposure, which is useful at launch, but it also wastes the most spend. Review search terms weekly and add negatives.
Close Match shows your ad for searches that closely describe your product. It often produces the most relevant terms to promote into manual campaigns, so check its search term data every week. Even close matches can be off, so watch conversion rates.
Substitutes places your ad on the product pages of similar or competing products. Shoppers there are actively comparing options. Conversion rates can be lower because you're catching people mid-decision, so expect a higher ACoS while you build visibility. The data also shows which competitor ASINs are worth targeting manually.
Complements places your ad on pages of products that are used alongside yours, such as a phone case on a smartphone listing. It reveals what shoppers buy with your product and which ASINs to use in cross-sell campaigns. Relevance varies, so check which ASINs bring quality clicks and which bring curiosity clicks.
You can set a separate bid for each sub-type. A common approach is to bid highest on Close Match, moderately on Substitutes, and lowest on Loose Match and Complements. That sends budget to the most relevant traffic first.
Part 2: Manual Keyword Match Types
Manual campaigns give you control over which search terms can trigger your ads. There are three keyword match types.
Broad Match is the widest. Your ad can show for searches with your keyword terms in any order, plus plurals, variations, synonyms and related terms. The search doesn't have to contain your keyword at all. For example, bidding on "protein powder chocolate" could show your ad for "chocolate whey protein" or "best protein powder."
Broad match suits launches and keyword expansion. It needs strong negative keyword management. In Sponsored Brands, you can add a broad match modifier by placing a + before a keyword. This requires that word to appear in the shopper's search. For example, +kids shoes can match "kids sneakers" but not "sneakers."
Phrase Match shows your ad when the search contains your keyword phrase in the same order. Other words can come before or after. Bidding on "wireless earbuds" can match "best wireless earbuds under 2000" or "wireless earbuds for gym," but not "earbuds wireless."
It's a good middle ground for capturing long-tail variations while keeping intent intact.
Exact Match is the most precise. In Sponsored Products, your ad shows for the exact keyword or close variants such as plurals. Bidding on [wireless earbuds] can match "wireless earbud," but not "best wireless earbuds under 2000."
In Sponsored Brands, keyword targeting also uses semantic matching, so keywords with the same meaning can be eligible for the same search. Match types there can behave more loosely than in Sponsored Products. Use exact match for your proven, most profitable terms. Because reach is narrow, pair it with broader match types.
The match type migration funnel is the core of a mature keyword strategy:
- Discover: Run auto campaigns to find converting search terms.
- Test: Run broad and phrase campaigns to validate terms at scale.
- Harvest: Move proven winners into exact match campaigns.
- Protect: Add high-spend, non-converting terms as negatives. Once a term is promoted to exact, consider adding it as a negative in your broad and phrase campaigns so that spend and data for that term stay in one place.
Part 3: ASIN Targeting and Catalog Strategies
Beyond keywords, you can target specific ASINs or categories. It's one of the most under-used tools in Amazon PPC.
Competitor ASIN targeting (expanded) shows your ad on a competitor's page and on closely related products. It works for visibility, especially at launch. Use Auto Substitutes data to see which competitor pages already convert for you.
Competitor ASIN targeting (exact) places your ad on one specific listing. Use it for head-to-head conquesting where you know that product drives comparison shopping.
A practical filter is to look for competitors with strong sales but weak listings, for example few images and low review counts. Tools like Helium 10 can help you find them. The thresholds depend on your category, and these are the pages where shoppers are most likely to switch.
Cross-sell and up-sell are strategies built on ASIN targeting, not separate match types:
- Cross-sell: Target complementary products, yours or others', to encourage add-ons. Brand Analytics Market Basket Analysis shows what shoppers buy alongside your product.
- Up-sell: Show a larger or premium variant on the page of a smaller one, such as a 2 kg pack on your 1 kg listing, to raise average order value.
Part 4: Sponsored Brands and Sponsored Display Targeting
Sponsored Brands supports keyword targeting (broad, phrase, exact) and ASIN targeting. Use phrase and exact for high-intent, brand-relevant terms. Target competitor ASINs when you want your brand banner shown on their product pages. Sponsored Brands is available to vendors, agencies, and professional sellers enrolled in Amazon Brand Registry.
Sponsored Display uses different targeting types:
- Contextual: Target product categories or competitor ASINs. This is best for category-level awareness.
- Views remarketing: Re-engage shoppers who viewed your product but didn't buy.
- Purchases remarketing: Reach past buyers, which works well for consumables and replenishment.
- In-market audiences: Reach shoppers actively browsing or buying in your category.
- Interest and lifestyle audiences: Build broader awareness among shoppers who fit your target persona.
Negative Keywords: The Match Type You Can't Ignore
Negative keywords stop your ads showing for irrelevant searches. They protect budget and keep campaigns focused.
- Negative phrase blocks any search containing your phrase. Use it for clear irrelevance, such as "free" or "DIY" if you sell premium products.
- Negative exact blocks that exact search term and its close variations, such as plurals. Use it for specific high-spend, zero-conversion terms from your search term report.
A simple weekly routine:
- Pull the search term report and sort by spend.
- Find terms that have spent roughly 10-15 times your average CPC with zero orders. This is an Aakaar rule of thumb, not an Amazon rule. Amazon recommends waiting for at least 20 clicks before negating a term, so act sooner only if the term is clearly irrelevant. Add these as negative exact.
- Find terms with ACoS above twice your target and very few orders. Consider negative phrase.
- Promote terms with repeat orders at a healthy ACoS into exact match.
Keep the thresholds consistent so you're comparing like with like week to week.
Frequently Asked Questions
Conclusion
Match types are the structure of your ad strategy. Auto and broad build your discovery engine, phrase balances reach and relevance, exact concentrates budget on proven winners, and ASIN targeting handles competitor and catalog tactics. Negatives keep the whole system efficient.
Once you know how each one behaves, the next step is organizing them into a clear campaign structure. In the next post, we cover the 4-stage Amazon PPC playbook.


