Amazon Retargeting Ads Explained: How to Bring Back Shoppers Who Didn’t Buy

Most shoppers don’t buy the first time they visit your product page. They click your ad, explore your listing, and leave, taking your ad spend with them.

Amazon retargeting ads help you bring high-intent shoppers back and re-engage audiences who have already shown interest in your products. By focusing on traffic you’ve already paid to acquire, retargeting can be one of the most cost-effective ways to improve conversions and maximize advertising ROI.

This guide explains everything: how retargeting ads on Amazon work, the types available, best practices for each, and how to measure whether your campaigns are actually performing.

What Are Amazon Retargeting Ads? 

Amazon retargeting ads are ads that specifically target shoppers who have already interacted with your brand or products on Amazon but have not yet made a purchase. Instead of reaching a cold audience that has never seen your product, retargeting focuses on warm audiences: people who already know what you sell and have shown enough interest to engage with it.

Think of it this way. A shopper searches for a protein supplement, clicks on your listing, reads your bullets, checks your reviews, and then closes the tab. Amazon retargeting ads allow you to follow that shopper with a relevant ad for your product as they continue browsing, whether on Amazon itself or on third-party websites and apps.

Retargeting vs. Remarketing: The Actual Difference

The terms are used interchangeably in most conversations, and in practice, they refer to the same outcome: re-engaging people who did not convert. The technical distinction is subtle.

Retargeting typically refers to showing ads to users based on their browsing behavior, tracked through cookies and pixels. Remarketing originally referred to reaching past customers through email or direct outreach. On Amazon, both terms are used to describe the same function: showing ads to audiences who have previously interacted with your products or brand.

For the purposes of this guide, retargeting and remarketing mean the same thing.

Why Most Shoppers Do Not Buy on the First Visit

This is not a mystery. It is shopping behavior. Studies consistently show that the majority of online shoppers do not purchase on their first visit to a product page. They compare options, read reviews, check prices, get distracted, and come back later, or they come back to a competitor.

On Amazon specifically, a shopper might view your product, click on three others, add one to a cart, and still not buy that day. The purchase decision often takes multiple touchpoints. Retargeting ads give you a presence during those subsequent touchpoints when the buying decision is still forming.

How Do Amazon Retargeting Ads Work?

How Amazon Tracks Shopper Behavior

Amazon has one of the most detailed first-party data sets in e-commerce. Every action a shopper takes on the platform is logged: what they search for, which product pages they visit, how long they spend on a listing, what they add to cart, what they buy, and what they browse after. This behavioral data is what powers Amazon ads retargeting.

When a shopper interacts with your product in any meaningful way, Amazon flags that interaction and makes that shopper eligible for retargeting audiences. You do not need to install a pixel or set up external tracking. Amazon handles it all within the platform.

The Five Retargeting Triggers

Amazon segments retargeting audiences based on the type of interaction a shopper had with your brand or products. There are five main triggers:

1. Product Views: The shopper visited your product detail page. This is the most common retargeting trigger and the foundation of most retargeting Amazon ads strategies.
2. Product Searches: The shopper searched for keywords related to your category. They are actively looking for what you sell, but have not landed on your listing yet, or did not convert after seeing it.
3. Brand Views: The shopper visited your Amazon Storefront or interacted with your brand content. This signals category interest combined with brand awareness.
4. Brand Purchases: The shopper has previously bought from your brand. This trigger is particularly valuable for cross-sell and repeat purchase campaigns.
5. Similar Product Views: The shopper viewed products that are similar to yours, but did not view your listing directly. This sits between prospecting and retargeting: the shopper is in your category but may not have found you yet.

Where Retargeted Ads Appear

Amazon retargeting ads can reach shoppers in two environments.

On Amazon, retargeted ads appear on product detail pages, in search results, on the homepage, and across other placements within the Amazon ecosystem. A shopper who viewed your product yesterday might see your ad while browsing a completely different category today.

Off Amazon, through Amazon DSP and the expanding Sponsored Products off-Amazon feature, your ads can follow shoppers to third-party websites, apps, and platforms outside of Amazon entirely. This is how you maintain visibility even when the shopper is no longer actively shopping on Amazon.

Benefits of Amazon Retargeting Ads 

Higher Conversion Rates from Warm Audiences

This is the core argument for retargeting. A shopper who has already viewed your product is significantly more likely to convert than someone seeing it for the first time. They know your product exists. They have considered it. The retargeted ad is a reminder, not an introduction.

Retargeted audiences consistently outperform cold prospecting audiences on conversion rate. The exact lift varies by category and creative, but the direction is always the same: warm converts better than cold.

Lower ACoS vs. Cold Prospecting Campaigns

Because retargeted audiences convert at higher rates, your advertising cost of sale (ACoS) on retargeting campaigns is typically lower than on prospecting campaigns targeting new audiences. You are spending money on people who are already partway through the buying decision. Less budget goes to waste on shoppers with no real purchase intent.

This makes amazon retargeting campaign spend some of the most efficient in your entire ad portfolio.

Brand Recall and Staying Top of Mind

Most purchase decisions are not made instantly. A shopper who saw your product today might be ready to buy in three days. Retargeting keeps your brand visible during that window. When they are finally ready to click the buy button, your product stays in consideration because they have seen it more than once.

Brand recall is a compounding advantage. Every additional touchpoint strengthens the association between a shopper’s need and your product.

Cross-Sell and Repeat Purchase Opportunities

Retargeting is not only for recovering lost sales. Brand purchase audiences, shoppers who have already bought from you, can be targeted with complementary products or replenishment reminders. If a customer bought your supplement last month, a retargeted ad for a related product or a reorder reminder at the right time can drive meaningful incremental revenue.

Better Shopper Behavior Data

Running retargeting campaigns surfaces data you cannot get from prospecting alone. You can see which products get viewed most but convert least, indicating a listing quality issue rather than a traffic problem. You can compare CTR and CVR across different audience segments to understand what messaging resonates at what stage of the buying journey. That data improves your entire advertising strategy, not just your retargeting campaigns.

Types of Amazon Retargeting Ads 

Sponsored Display: Views and Audience Retargeting

Amazon Sponsored Display retargeting is the most accessible retargeting tool available to third-party sellers. It is available to sellers enrolled in Amazon Brand Registry and does not require a minimum ad spend to access.

Amazon sponsored display retargeting operates through two targeting methods:

Views Retargeting targets shoppers who have viewed your product detail pages or similar products within a set lookback window. This is the closest equivalent to traditional retargeting and is where most sellers start.

Audience Retargeting uses Amazon’s lifestyle and in-market audience segments to reach shoppers based on broader behavioral signals, including past purchase history and category interests.

Sponsored Display ads appear both on Amazon and on third-party sites through Amazon’s publisher network, giving you cross-environment reach without needing DSP access.

Sponsored Products: Retargeting Through Auto Campaigns

Sponsored Products do not have a dedicated retargeting toggle, but auto campaigns effectively function as a retargeting mechanism. When a shopper has previously searched for or viewed products in your category, Amazon’s algorithm is more likely to serve your Sponsored Products ad to that shopper in subsequent searches.

The retargeting signal within Sponsored Products is built into Amazon’s targeting logic rather than being a manually configurable audience. This makes it less precise than Sponsored Display but valuable as part of a broader retargeting stack.

Sponsored Brands: Retargeting with Video and Headline Ads

Sponsored Brands ads, including Sponsored Brands Video, can be directed at retargeting audiences in a similar way to Sponsored Display. A shopper who has viewed your Storefront or interacted with your brand can be reached with a Sponsored Brands headline or video ad in search results.

Sponsored Brands retargeting is particularly effective for driving shoppers back to your Storefront rather than a single product page, which is useful when you have multiple relevant products for a given customer.

Amazon DSP: Advanced Retargeting at Scale

Amazon DSP retargeting is the most powerful and most advanced option available. It is a demand-side platform that allows advertisers to programmatically buy display and video ad inventory across Amazon-owned properties and third-party websites and apps.

Amazon DSP retargeting gives you access to:

• Granular audience segmentation based on detailed behavioral signals
• Off-Amazon ad placements across millions of websites and apps
• Frequency capping to control how often a specific shopper sees your ad
• Advanced reporting through Amazon Marketing Cloud (AMC)

DSP is typically accessed through a managed service with Amazon or through a certified DSP partner. It requires a higher minimum spend, usually starting around $10,000 per month, which makes it better suited to brands at significant scale.

Sponsored Display vs. DSP: Which Is Right for Your Brand?

For most sellers, Sponsored Display is the right starting point. It is self-serve, accessible through Seller Central, has no minimum spend requirement, and covers both on-Amazon and some off-Amazon placements. It delivers meaningful retargeting results without the complexity or cost of DSP.

Amazon DSP retargeting makes sense when you need more advanced audience segmentation, broader off-Amazon reach, frequency management at scale, or AMC-powered attribution insights. It is an upgrade, not a replacement.

If you are running Sponsored Display retargeting and hitting the ceiling on what it can do for your brand, DSP is the logical next step.

Best Practices by Ad Type 

Sponsored Display Best Practices

Optimization Goal

When setting up a Sponsored Display retargeting campaign, you will choose between optimizing for reach, page visits, or conversions. For most retargeting use cases, optimizing for conversions is the right choice. You are targeting warm audiences who are close to buying. You want the algorithm to prioritize shoppers most likely to complete a purchase.

The exception: if your brand is new and your sales volume is low, optimizing for page visits first can help the algorithm learn before switching to conversion optimization.

Audience Selection

Always start with audiences who have viewed your specific products. Amazon also offers the option to target audiences who viewed similar products, which is broader and closer to prospecting. Keep these in separate campaigns so you can measure performance independently. Do not mix warm retargeting audiences with broader category audiences in the same ad group.

Lookback Windows

Choose your lookback window based on how long your typical buyer takes to make a decision. A 7-day window works for impulse and low-consideration purchases. A 30 to 60-day window suits higher-priced or more complex products where the decision takes longer. More on this in Section 7.

Creative

Use your highest-quality product image. If you have a short product video that explains a key benefit clearly, test it. The creative should immediately remind the shopper of what they viewed and give them a reason to come back. Avoid generic brand imagery in retargeting. Specificity wins.

Product Granularity

Keep your retargeting campaigns granular. If you add too many products into a single ad group, ad spend concentrates on your highest-traffic ASINs, and other products get minimal exposure. Structure campaigns so each significant product gets its own ad group or campaign.

Sponsored Products Best Practices

Search Term Reports

Review your Search Term Report regularly. Identify which search terms are driving clicks without conversions and add them as negatives. Identify high-converting terms and ensure you are bidding competitively on them. This is where your retargeting efficiency is built over time.

Negative Keywords

Negative keywords are essential for keeping Sponsored Products retargeting focused. If your auto campaign is attracting clicks from irrelevant queries, you are paying to reach audiences with no purchase intent. Negatives protect your budget and keep your audience quality high. Skipping negative keyword discipline is one of the most common errors advertisers make with Amazon Sponsored Product Ads, and one of the most avoidable. 

Bid Strategy

Avoid relying on Amazon’s suggested bids as a default. Set your own bids based on your target ACoS and the conversion data from your account. For retargeting-adjacent auto campaigns, bid higher on placements that have historically converted and lower on placements that generate clicks without sales.

Sponsored Brands Best Practices

Audience Targeting

For Sponsored Brands retargeting, target audiences who have previously engaged with your Storefront or brand content. These are your warmest brand-level audiences and the most likely to respond to a brand-level ad format.

Video Creative

Sponsored Brands Video that leads with a clear product benefit in the first three seconds performs significantly better than brand storytelling videos in a retargeting context. The shopper already has some awareness of your brand. What they need is a reason to come back and buy.

Brand Store Retargeting

Drive retargeted Sponsored Brands traffic to your Storefront rather than a single product page when you have multiple relevant products. A well-built Storefront gives the returning shopper a better brand experience and increases the likelihood of a conversion across your catalog.

Retargeting Strategy at Every Funnel Stage

Retargeting is not a single tactic. It operates differently at each stage of the buying funnel, and your campaigns should reflect that.

Top of Funnel: Building Awareness with Warm Audiences

At the top of the funnel, your goal is not to push for an immediate purchase. It is to maintain visibility with shoppers who are still exploring your category. This includes similar product viewers and early-stage brand viewers who are familiar with your category but may not have landed on your product yet.

Sponsored Display with views retargeting targeting similar product viewers works well here. Keep bids conservative and focus on impression share rather than conversion rate. You are planting the flag, not closing the sale.

Middle of Funnel: Re-Engaging Product Viewers and Cart Abandoners

This is where the majority of your retargeting budget should go. Middle-of-funnel audiences have viewed your product, compared it to competitors, and left without buying. They are genuinely interested. They just need another touchpoint.

Target product viewers with a 14 to 30-day lookback window. Use Sponsored Display with conversion optimization. If a shopper added your product to their cart but did not check out, that is your highest-intent audience. Prioritize them with your strongest creative and highest bids.

Bottom of Funnel: Converting High-Intent Shoppers

Bottom-of-funnel retargeting targets shoppers who have shown the clearest purchase intent: multiple product page views, cart adds, or previous brand interactions over a short period. These audiences are close to buying. The goal is simply to be present when they are ready to click the buy button.

Short lookback windows of 7 to 14 days, conversion-optimized bidding, and your most direct creative work best here. Do not overthink the messaging. The shopper knows your product. The ad is a reminder, not a pitch.

How Retargeting Connects to Your Overall PPC Strategy

Retargeting does not replace prospecting. It extends it. Your Sponsored Products and Sponsored Brands prospecting campaigns generate the initial traffic and product views. Your retargeting campaigns work to convert the portion of that traffic that did not buy on the first visit.

Think of it as a two-stage system. Prospecting fills the top of the funnel.

Think of it as a two-stage system. Prospecting fills the top of the funnel, while retargeting recovers value from the middle and bottom. This approach works best when it’s part of a broader Amazon PPC Strategy that aligns audience targeting, bidding, and campaign objectives across the entire funnel. 

A full service Amazon agency can help you connect prospecting, retargeting, listing optimization, and customer insights into one cohesive strategy. When every stage of the funnel works together, you can maximize conversions, improve advertising efficiency, and generate more value from every click.

Lookback Windows Explained

What Lookback Windows Are and Why They Matter

A lookback window is the time period Amazon uses to determine whether a shopper qualifies for your retargeting audience. If you set a 30-day lookback window, your ads will target shoppers who viewed your product within the last 30 days. If you set 7 days, only shoppers who viewed your product in the last week qualify.

The window you choose directly affects your audience size, your bid efficiency, and the relevance of your ads to the shopper’s current intent level. A shopper who viewed your product yesterday is a very different prospect from one who viewed it 89 days ago.

Amazon Sponsored Display offers lookback windows of 7, 14, 30, 60, and 90 days.

Recommended Windows by Product Type

7 to 14 days: Best for low-consideration, lower-priced products where purchase decisions are made quickly. Everyday consumables, accessories, and impulse purchases fall into this category. A shopper still thinking about a $15 item after two weeks has likely already bought elsewhere.

30 days: The most common starting point for mid-range products. Covers the typical consideration window for most consumer goods without spreading the budget too thin across an audience that has lost purchase intent.

60 to 90 days: Suited to higher-priced or more complex products where research takes time: electronics, fitness equipment, furniture, premium supplements. Shoppers in these categories may spend weeks comparing options before committing.

Matching Window Length to Your Buyer’s Decision Timeline

The best way to choose a lookback window is to think about your actual customer. How long does someone typically take to go from first discovering your product to purchasing it? If your product has a higher price point and requires research, go longer. If it is something a shopper could decide on in a day, go shorter.

A practical starting point: launch with a 30-day window, let the campaign run for 4 to 6 weeks, then check conversion rate by audience segment. If you see strong performance in the first two weeks of the window but weaker performance beyond that, trim to 14 days. If performance is consistent throughout the 30 days, test extending to 60. Let the data guide the decision.

ASIN-Level Retargeting and Precision Targeting

Why Broad Product-Level Retargeting Wastes Budget

One of the most common mistakes sellers make with retargeting is grouping too many products into a single campaign or ad group. When you do this, Amazon’s algorithm allocates the majority of your budget to your highest-traffic ASINs because they have the most audience data available. Your other products get minimal exposure regardless of their potential.

The result is a retargeting campaign that looks like it is running across your catalog but is actually only working for two or three products. The budget that should be recovering lost sales across your range is concentrating where it is least needed.

How to Set Up Granular ASIN-Level Campaigns

Structure your retargeting campaigns so each significant ASIN has its own ad group, or for your top products, its own campaign. This gives you individual budget control, independent bidding, and clean performance data for each product.

For products with multiple variations (different sizes, colors, or styles), consider grouping variations together in one ad group since they share a listing and a retargeting audience. For products that are distinct listings with different price points or customer profiles, keep them separate.

This granularity lets you identify which products are strong retargeting performers and which need listing improvements before retargeting spend is justified.

Competitor ASIN Targeting as a Retargeting Play

Sponsored Display allows you to target shoppers who have viewed competitor product pages. This is not technically retargeting in the traditional sense since these shoppers have not interacted with your brand. But strategically, it functions similarly: you are reaching warm, in-market audiences who are actively comparing products in your category.

Target competitor ASINs where your product has a clear advantage: better reviews, lower price, more features, or stronger social proof. The creative for this type of campaign should lean into differentiation. The shopper is comparing. Give them a reason to choose you.

Is Your Listing Ready for Retargeting?

Why Retargeting Spend on a Weak Listing Compounds the Problem

This is a point that most retargeting guides skip, but it is one of the most important factors in whether your retargeting campaigns work. Running retargeting ads to a listing that did not convert the first time does not fix the conversion problem. It amplifies it. If your listing is getting traffic but not converting, it is worth understanding why Amazon PPC clicks stay high, but sales remain low, before putting retargeting budget behind the same problem.

If a shopper viewed your product and left because the images were unconvincing, the reviews were thin, the price felt unjustified, or the listing copy did not answer their key questions, sending them back to the same listing will produce the same result. You will spend more money on a shopper who still will not buy.

Retargeting recovers value from good traffic that encountered a good listing but needed more time. It does not rescue bad listings.

What to Audit Before Launching a Retargeting Campaign

Before increasing your retargeting spend, run through this audit:

1. Images: Does your main image immediately communicate what the product is and why it is the best option in the category? Are your secondary images answering the questions a shopper would have before buying? Lifestyle shots, infographic callouts, and comparison images all contribute to conversion.
2. A+ Content: Is your A+ content doing genuine selling work, or is it just brand decoration? Strong A+ content addresses objections, highlights key benefits, and reinforces the shopper’s reason to buy.
3. Reviews: A product with fewer than 15 to 20 reviews, or with a rating below 4.0, faces a credibility problem that retargeting cannot solve. Fix your review profile before scaling retargeting spend.
4. Pricing and Competitive Position: Is your price competitive for your category? If you are priced significantly above comparable products without a clear reason, that is why shoppers are leaving. Retargeting brings them back, but does not change the price objection.
5. Title and Bullet Points: Are your title and bullets keyword-optimized and benefit-focused? A returning shopper who clicks through from a retargeted ad is giving you a second look. Make sure the listing earns it.

The Conversion Readiness Checklist

Before launching or scaling a retargeting Amazon Ads campaign, confirm the following:

• The main image is high quality and immediately communicates product value
• At least 4 to 6 secondary images, including lifestyle and infographic shots
• A+ content is published and benefit-focused
• Minimum 15 reviews with a 4.0 or above rating
• Price is competitive for the category
• Title and bullets are optimized for both search and conversion
• The listing answers the top 3 objections a shopper in your category would have

If any of these are missing, prioritize fixing them before putting more budget behind retargeting. The listing is where the sale actually happens.

How to Measure the Success of Your Retargeting Campaigns 

The Metrics That Matter

The Amazon PPC Metrics that matter for retargeting campaigns are Conversion Rate (CVR), ACoS, ROAS, New-to-Brand Rate, and Click-Through Rate (CTR).

1. Conversion Rate (CVR): The most important metric for retargeting. Because you are targeting warm audiences, your CVR should be meaningfully higher than your prospecting campaigns. If it is not, the problem is either audience quality, creative relevance, or listing conversion rate.
2. ACoS: Your retargeting ACoS should be lower than your prospecting ACoS. If it is not, check whether your audiences are truly warm (correct lookback window, product views not similar product views) and whether your bids are calibrated to the higher conversion rate these audiences should deliver.
3. ROAS: The return on ad spend for retargeting campaigns should be higher than for cold prospecting. Strong ROAS from retargeting is evidence that your initial prospecting spend is generating audiences worth re-engaging.
4. New-to-Brand (NTB) Rate: A lower NTB rate on retargeting campaigns is expected and healthy. It confirms you are reaching returning audiences rather than new ones. If NTB is high on your retargeting campaigns, check your audience setup: you may be inadvertently targeting broader, less warm audiences.
5. Click-Through Rate (CTR): CTR on retargeting ads reflects creative relevance. A shopper who already knows your product should click at a higher rate than a cold audience seeing it for the first time. Low CTR on retargeting campaigns often signals a creative problem.

How to Read Performance at Each Funnel Stage

Top-of-funnel retargeting campaigns targeting similar product viewers will have higher ACoS and lower CVR. That is expected. Do not hold them to the same performance standard as bottom-of-funnel campaigns targeting recent product viewers.

Middle-of-funnel campaigns should show moderate CVR improvement over cold traffic, with ACoS trending toward your target range.

Bottom-of-funnel campaigns targeting recent viewers and cart abandoners should be your strongest performers on CVR and ACoS. These are your best audiences. If they are not outperforming, the listing or creative needs attention.

Ad Fatigue Signals and How to Manage Frequency

Ad fatigue happens when a shopper sees the same retargeting ad too many times without converting. Signs of fatigue: CTR declining over time on a stable audience, conversion rate dropping despite consistent traffic, or impression share growing while clicks decline.

To manage fatigue, rotate creatives regularly, especially on longer lookback window campaigns where the same audience sees your ads over an extended period. Sponsored Display has limited creative flexibility, but even swapping the headline copy or testing a different secondary image can reset engagement. Amazon DSP retargeting offers frequency capping, which lets you control exactly how many times a shopper sees your ad in a given period.

When to Scale, Pause, or Restructure

Knowing when to act on campaign data is a core part of Amazon PPC optimization, the same diagnostic logic that applies to your prospecting campaigns applies here. 

Scale: when CVR and ROAS are above your targets, and your budget is constrained. Increase bids incrementally and watch whether efficiency holds at higher spend levels.

Pause: When a campaign has run for at least 4 to 6 weeks with meaningful impression volume and is consistently delivering CVR below your prospecting baseline. Something is wrong with the audience, the creative, or the listing. Diagnose before spending more.

Restructure: When you see strong aggregate performance but suspect it is concentrated in one or two products or audience segments. Break the campaign into more granular ad groups, isolate the strong performers, and give underperforming products either more controlled spend or a listing audit before re-running.

Conclusion

Amazon retargeting ads are one of the most efficient tools available to sellers because they work with traffic you have already earned. Every shopper who clicks your product and does not buy represents a second opportunity. Retargeting is how you take it.

The fundamentals are straightforward: understand your audience triggers, choose the right ad format for your brand stage, set lookback windows that match your buyer’s decision timeline, keep your campaigns granular, and make sure your listing can actually convert the traffic you are sending back to it.

Retargeting does not work in isolation. It works as part of a connected advertising system where your prospecting campaigns generate the audiences and your retargeting campaigns recover the value. When both are running with shared data and aligned strategy, your overall advertising efficiency compounds.

AMZDUDES, a full service Amazon agency, helps brands build that system. Our Amazon PPC services bring together advertising, listing creative, and customer insights to create a unified growth strategy that improves campaign performance, increases conversion rates, and maximizes the value of every advertising dollar.

Book a free consultation call with AMZDUDES today!

Frequently Asked Questions 

What is the difference between Amazon retargeting and Amazon remarketing?

In practice, the terms are interchangeable on Amazon. Both refer to showing ads to shoppers who have previously interacted with your products or brand but have not yet purchased. Amazon uses both terms across its advertising documentation. For your strategy, treat them as the same thing.

Do I need Brand Registry to run retargeting ads on Amazon?

For Sponsored Display retargeting, yes. Amazon Sponsored Display is available to sellers enrolled in Brand Registry, vendors, and agencies. Sponsored Products auto campaigns, which have an indirect retargeting function, are available to all sellers. Amazon DSP requires Brand Registry and typically a managed service relationship or agency access.

How much does Amazon retargeting cost?

The cost of Amazon retargeting ads varies depending on the ad type, category competitiveness, and your bid strategy. Sponsored Display retargeting operates on a CPC or CPM model, and you set your own bids. There is no minimum spend. Amazon DSP retargeting typically requires a minimum monthly investment starting around $10,000 and is managed through Amazon or a certified partner. For most sellers, Sponsored Display is where to start since the cost of entry is low and performance is measurable from day one.

How long should I run a retargeting campaign before evaluating it?

Give any retargeting campaign at least 4 to 6 weeks before concluding. Retargeting campaigns need time to accumulate enough impressions and click data to produce statistically meaningful conversion signals. Evaluating after one or two weeks with limited data leads to premature decisions in either direction.

Can I retarget shoppers who viewed competitor products?

Yes, through Sponsored Display product targeting, you can target shoppers who have viewed specific competitor ASINs. This is not traditional retargeting since these shoppers have not interacted with your brand, but it reaches in-market audiences who are actively comparing options in your category. Keep competitor targeting in a separate campaign from your direct retargeting audiences so you can measure performance independently.

What is a lookback window in Amazon retargeting?

A lookback window is the time period Amazon uses to qualify shoppers for your retargeting audience. If you choose a 30-day lookback window, your ads target shoppers who viewed your product in the last 30 days. Amazon Sponsored Display offers options of 7, 14, 30, 60, and 90 days. The right window depends on how long your typical customer takes to make a purchase decision.

Why are my retargeting ads not converting?

The most common reasons are a listing conversion problem (the listing itself is not convincing enough to close the sale), an audience quality issue (you may be targeting broader similar product viewers rather than true product viewers), a creative problem (the ad is not compelling enough to bring the shopper back), or an insufficient lookback window that is pulling in shoppers who have long since lost purchase intent. Start by checking your listing against the conversion readiness checklist in Section 9.

Should I exclude recent buyers from my retargeting campaigns?

Yes. Showing retargeting ads to shoppers who have already purchased your product wastes budget and creates a poor customer experience. Amazon Sponsored Display allows you to exclude purchasers from your retargeting audiences. Always enable this exclusion. The exception is cross-sell campaigns specifically targeting past buyers with different products, which should be set up as a separate campaign with a clear cross-sell objective.