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    The Power of Precision: A Guide to Amazon Marketing Cloud Custom Audiences

    • Amazon Marketing Cloud (AMC)
    The Power of Precision: A Guide to Amazon Marketing Cloud Custom Audiences
    August 06, 2025


    When entering the digital marketing ecosystem, the ability to precisely target your ideal customer is a necessity. If you are advertising on Amazon, leveraging AMC for Custom Audiences can significantly boost your campaign's efficiency, relevance, and ROAS. With platforms like Hector, advertisers and sellers can turn AMC's raw data into scalable strategies.

    However, before diving into leveraging Hector to unlock AMC's full potential, let's first understand what AMC Custom Audiences are, why they matter, and how you can create them.

    What is an AMC Custom Audience?

    An AMC Custom Audience is a user-defined group of Amazon customers/shoppers built using insights from the Amazon Marketing Cloud, SQL-based analytics, and Amazon's privacy-safe. Unlike standard DSP segments, these audiences are created by analyzing customer behavior signals such as:

    • Add-to-cart actions

    • Product views

    • Purchase patterns

    • Search term history

    • Ad interactions across Sponsored Ads and DSP

    The custom segmentation gives brands the power to define audiences based on real engagement, not guesswork. You may think of it as building hyper-targeted segments from scratch using verified, Amazon native behavioral data.

    Why Are AMC Custom Audiences Important?

    Standard audience targeting often relies on a pre-set criterion that may or may not align perfectly with your goals. AMC Custom Audiences let you move beyond broad strokes to build segments that directly reflect how customers interact with your products and ads. The Custom Audience approach leads to:

    • Higher Campaign Relevance: You are speaking to users at the right stage in their buying journey.

    • Improved ROAS: Better targeting means less waste and more conversions.

    • Data-Driven Scaling: Use purchase frequency, keyword behavior, or demographics to expand new audiences.

    • Stronger Personalization: Customize your message to different user intents, whether they are just browsing or ready to buy.

    Custom audiences are not only effective but also smarter. And platforms like Hector make building them faster, easier, and more strategically.

    How to Create AMC Custom Audiences on Amazon

    Creating AMC Custom Audiences requires:

    • Access to Amazon Marketing Cloud: You need to be whitelisted or have access through a partner or AMC-enabled platform.

    • Understanding Your Audience Goals: Start by selecting the behavior you are targeting. It could be anything, such as past purchasers, recent viewers, cart abandoners, or even customers who searched for specific keywords.

    • Writing SQL Queries: AMC operates in a SQL environment. You would need to write queries to extract the audience segments you want. However, with Hector (an AdTech platform), no SQL is required to create a custom audience, eliminating manual work and time.

    • Export and Activation: Once your audience is defined and validated, it can be exported into Amazon DSP or Sponsored Ads for activation

    The traditional SQL Query writing process is quite time-consuming; that's where Hector changes the entire game.

    Simplifying Custom Audience Creation with Hector

    While AMC offers a plethora of insights, extracting value from it can be challenging without the right technical expertise. We bridge that gap by making custom audience creation goal-oriented and intuitive.

    Using our platform, advertisers can:

    • Build lookalike audiences of high-value shoppers to expand reach

    • Segment by search behavior, device usage, and location

    • Create add-to-cart audiences to retarget non-converting users

    • Focus on repeat buyers for retention

    These audience strategies can be activated directly in Amazon Ads with minimal effort. This can be achieved by maintaining the integrity and customization AMC enables.

    Learn the Best Practices for AMC Custom Audience

    Whether you are using AMC directly or through our platform, follow these practices to ensure maximum impact:

    1. Use Time Window Segmentation

    Differentiate audiences based on recent vs. past activity, such as those who purchased within 7 days vs. 60 days.

    2. Combine Data Sources

    Use a mix of Amazon retail signals and ad engagement data. The more dimensions your audience has, the better your targeting becomes.

    3. Leverage Audience Overlap Tools

    It is crucial to understand how different audiences intersect. This is essential for cross-selling and avoiding wasted impressions.

    4. Exclude Irrelevant Users

    Don't waste the budget on users who've already converted. Carefully choosing who to exclude is as important as picking whom to include.

    5. Apply RFM Segmentation

    Segment the customers by Recency, Frequency, and Monetary value to determine the one-time buyers.

    Choose Hector for AMC Audience Creation

    With Amazon Marketing Cloud Custom Audiences, you can unlock the potential to speak directly to the customers who matter the most. You can pair the deep AMC insights with Hector Ai's smart audience creation engine, and you are sure to go beyond clicks and impressions to drive real results, like higher ROAS and long-term customer loyalty. Whether you are a brand, agency, or aggregator, our AdTech platform lets you build advanced audiences without writing SQL, access plug-and-play audience recipes built on best practices, activate segments across Amazon DSP, Sponsored Ads, or AMC reporting, and visualize audience overlap, size, and performance in real time.

    With us, your campaigns are backed by data and not guesswork.


    Frequently Asked Question

    Using Amazon Marketing Cloud (AMC) behavioral cues, a customized set of Amazon customers is known as an AMC Custom Audience. These audiences are constructed from actual user data, such as product views, add-to-cart behavior, and search history, in contrast to predetermined groups in DSP. This enables marketers to create extremely targeted and performance-driven audience segments.

    Not when utilizing a platform such as Hector. Hector streamlines the process with a plug-and-play, no-code interface, removing the requirement for technical know-how while maintaining the full potential of AMC segmentation, whereas AMC natively uses SQL to query data and create audiences.

    You can build segments like: Users who searched for your competitors Repeat buyers of a specific category Shoppers who added products to cart but didn’t purchase Customers who purchased during Prime Day but haven’t returned Viewers of your product detail page during a promotion

    Of course. AMC combines and anonymizes all data in a clean room setting. Without gaining access to personal data, advertisers are able to examine patterns and habits, guaranteeing complete adherence to privacy regulations.

    Activate audiences of lookalikes based on high-value customers Use audience overlap information to explore new segments Layer audience exclusions to prevent unnecessary expenditures Group users according to their time frame and intent (e.g., 7-day vs. 30-day cart abandoners). Use RFM (Recency, Frequency, Monetary value) segmentation.

    About the Author

    Meher Patel is the Founder & CEO of Hector Ai. He specializes in Amazon Ads, Amazon DSP, Amazon Marketing Cloud (AMC), retail media, and agentic AI.

    Under his leadership, Hector is ranked among the Top 20 Amazon Ads partners globally, and has won the Amazon Ads Partner Award for Seasonal Sales Strategy (2025) and the Amazon Ads Innovation Award (2025). Today, Hector manages over $350 million in annual ad spend across 500+ brands and agencies worldwide.

    Meher Patel, Founder & CEO of Hector Ai

    Meher Patel

    Founder & CEO, Hector Ai

    Hector Ai
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    On this page

    • 1.What is an AMC Custom Audience?
    • 2.Why Are AMC Custom Audiences Important?
    • 3.How to Create AMC Custom Audiences on Amazon
    • 4.Simplifying Custom Audience Creation with Hector
    • 5.Learn the Best Practices for AMC Custom Audience
    • ➤1. Use Time Window Segmentation
    • ➤2. Combine Data Sources
    • ➤3. Leverage Audience Overlap Tools
    • ➤4. Exclude Irrelevant Users
    • ➤5. Apply RFM Segmentation
    • 6.Choose Hector for AMC Audience Creation
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