SKAG stands for 'Single Keyword Ad Group' - a campaign structure in which each ad group contains only a single keyword. The goal is maximum control over bids and performance at the keyword level. On Amazon, people often talk about 'Single Keyword Campaigns,' because the campaign level is more relevant for budget control here.

How many keywords should an Amazon PPC campaign have?

It depends on your strategy. For top performers, dedicated single keyword campaigns are recommended. For mid-performing keywords, 5-15 thematically grouped keywords per ad group make sense. Long-tail keywords with low volume can be bundled into larger groups so they collect enough data.

Is SKAG worth it for small sellers?

For sellers with few products and a limited budget, a full SKAG structure is often too much overhead. Start with a classic campaign structure (Auto + Manual Broad + Manual Exact) and only create single keyword campaigns once individual keywords consistently generate high revenue - as a rule of thumb, from $500 in monthly keyword revenue.

Is SKAG still up to date in 2025?

SKAG isn't obsolete, but it has evolved. The purist approach - a dedicated campaign for every keyword - is impractical for most sellers. The underlying idea, however, remains relevant: top keywords deserve dedicated campaigns with individual budgets and bids. The art lies in finding the right balance between control and management overhead.

How do I move keywords between campaigns?

Analyze your search term report regularly. Keywords that perform well in Auto or Broad campaigns get moved into Exact campaigns. Important: set the moved keyword as a negative keyword in the original campaign to avoid keyword cannibalization. For top performers with high volume, you create a dedicated single keyword campaign.

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Amazon PPC Strategy

Single Keyword Campaigns (SKAG): Worth It or Outdated?

Last updated: February 3, 2025

Reading time: approx. 6 minutes

In the world of Amazon PPC, one concept has divided opinion for years: SKAG - the single keyword ad group. Some swear by it as the ultimate weapon for maximum control; others dismiss it as outdated perfectionism.

The truth, as so often, lies somewhere in between. In this article you'll learn what's behind the SKAG concept, when it actually makes sense as part of your Amazon advertising strategy - and when you're better off investing your time in other optimizations. Because not every keyword deserves its own campaign.

What is SKAG? The single keyword campaign concept

SKAG stands for single keyword ad group - originally a concept from Google Ads that has been adapted on Amazon as the single keyword campaign. The idea is simple: instead of bundling many keywords into one campaign, every important keyword gets its own dedicated campaign.

The SKAG principle at a glance:

1.One keyword per campaign (usually as exact match)
2.A dedicated daily budget for each keyword
3.Individual bid control with no competition within your own account
4.Maximum transparency of performance at the keyword level

Why a dedicated campaign and not just an ad group? On Amazon, the campaign level is decisive, because that's where the daily budget is controlled. In a multi-keyword campaign, an aggressively bid keyword can burn through the entire budget before other keywords even get served.

The pyramid structure as a foundation

Most successful Amazon PPC campaign structures follow a pyramid model:

Level	Campaign type	Purpose
Base	Auto campaign	Keyword discovery, broad coverage
Middle	Manual Broad/Phrase	More targeted targeting, keyword harvesting
Top	Manual Exact	Top keywords, high purchase probability
Peak	SKAG (single keyword)	Absolute top performers, maximum control

The benefits of SKAGs: why the concept works

SKAG didn't become popular by accident. Used correctly, the concept offers tangible benefits:

1. Maximum budget control

Each keyword has its own daily budget. Your top keyword gets as much budget as it needs - without other keywords "eating it up." You decide exactly how much you want to invest per keyword.

2. Precise bid control

In a multi-keyword campaign, your keywords compete internally for impressions. With SKAG, that internal competition doesn't exist. You can choose the optimal bidding strategy for each keyword - independent of the others.

3. Clear performance attribution

All metrics of a SKAG campaign relate to a single keyword. ACoS, ROAS, conversion rate - everything is unambiguously attributable. That makes optimization significantly easier.

4. Better placement control

With separate campaigns, you can set placement modifiers (Top of Search, Product Pages) individually for each keyword. Is a keyword performing better on product pages? Increase the bid there - without affecting other keywords.

Fact: Studies show that SKAGs can achieve a 35-50% improvement in ROAS at the keyword level - compared with grouped keywords in a single campaign.

SKAG is like a scalpel instead of a sledgehammer. For your most important keywords you want surgical precision - not blunt force. But you don't need a new scalpel for every cut.
Thorsten MüllerCEO at HORAiZON & Amazon Ads expert

The drawbacks: where SKAG hits its limits

As elegant as the SKAG concept sounds - in practice it has significant downsides you should be aware of:

The dark side of SKAG:

Enormous management overhead: 50 keywords = 50 campaigns. Each one needs monitoring, bid adjustments, budget supervision. That doesn't scale.
Slow data accumulation: A single keyword on its own collects less data than a group. Statistical significance takes longer - especially for long-tail keywords.
Cluttered campaign setup: Your advertising account quickly becomes hard to navigate. Working through hundreds of campaigns costs time and increases the error rate.
Risk of over-optimization: Not every keyword needs individual attention. You risk spending your time on micro-management instead of working strategically.
Budget fragmentation: Many small budgets can cause individual campaigns to run out too early or never build enough reach.

The biggest misconception about SKAG: more control doesn't automatically mean better results. If you spend 80% of your time managing low-volume keywords, that time is missing for strategic optimizations in the places that really count.

When do SKAGs make sense on Amazon?

The crucial question isn't "SKAG, yes or no?" but "SKAG for which keywords?" Here are clear criteria:

SKAG makes sense when...

The keyword generates at least $500 in revenue per month - only then does the management overhead justify a dedicated campaign.
You want to scale a specific keyword aggressively - for example, for a product launch or seasonal peaks.
The keyword has a noticeably different ACoS/ROAS than the rest - and you want to control budget and bids independently.
You're testing different placement strategies - Top of Search vs. Product Pages for a particular keyword.
It's a brand keyword - your own brand often deserves a dedicated campaign with its own budget.

SKAG is overkill when...

The keyword gets fewer than 100 clicks per month - too little data for meaningful optimization.
You have many similar long-tail keywords - group them thematically instead of individually.
You're just getting started with Amazon PPC - focus on the basics first.
Your total budget is under $1,000/month - don't fragment it too heavily.

The alternative: modern campaign structures

Modern Amazon PPC practice has evolved the SKAG concept into a hybrid approach: not every keyword gets its own campaign - but the most important ones do.

The recommended structure for 2025

Auto campaign (discovery)

For keyword research and long-tail coverage. This is where you find new keywords.

Broad/Phrase campaign (harvesting)

For validated keywords from the auto campaign. This is where you collect data.

Exact campaign (performance)

For proven keywords with good performance. This is where you optimize for profitability.

★

Single keyword campaigns (champions)

Only for the absolute top performers. 3-10 keywords that account for the bulk of your revenue.

The keyword migration process

Keywords travel through your structure - from discovery to optimization:

Discovery: Auto campaign finds a new keyword with conversions
Validation: Keyword is moved into the Broad/Phrase campaign and set as negative in Auto
Optimization: If performance is good → move into the Exact campaign, set as negative in Broad
Champion: If performance is outstanding → its own single keyword campaign

Keyword migration isn't a one-time process but a continuous cycle. Your campaign structure is a living system - it has to breathe and adapt.
Tim KraseCTO at HORAiZON

Don't forget negative keywords!

The most important part of every keyword migration: set the keyword as a negative keyword in the original campaign. Otherwise your own campaigns compete against each other and you pay twice.

Exact keywords → as negative exact in Broad/Phrase campaigns
Exact keywords → as negative phrase in Auto campaigns
SKAG keywords → as negative exact in all other campaigns

Conclusion: SKAG in 2025 - evolution, not revolution

Is SKAG outdated? No. Does SKAG make sense for every keyword? Definitely not. The truth lies in selective application: single keyword campaigns are a powerful tool for your top performers - but no cure-all for your entire PPC strategy.

Your main takeaways:

SKAG for champions: Reserve single keyword campaigns for your 5-10 highest-revenue keywords
At least $500/month: A keyword needs significant volume to justify its own campaign
Hybrid structure: Combine Auto, Broad, Exact and selective SKAGs into a well-thought-out pyramid
Negative keywords: With every migration, exclude the keyword in the original campaign
Effort vs. benefit: Invest your time where it has the greatest impact - not in micro-management

The best Amazon PPC strategy is the one you can actually maintain consistently. A perfect SKAG setup that you don't look after delivers less than a simple structure you optimize regularly.

Ready for an optimized campaign structure?

With HORAiZON ONE you analyze your keywords automatically and recognize which ones deserve a campaign of their own.

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Frequently asked questions about SKAG

About the author

Thorsten Müller

CEO at HORAiZON & Amazon Ads expert

Thorsten has been working in the Amazon ecosystem for over 10 years and, together with his team, has already helped hundreds of sellers optimize their campaign structures.