--- title: "Beginner's Guide: What is Amazon MWS?" description: What is Amazon MWS and how does it work? Learn how software companies and sellers use Amazon Marketplace Web Services. image: https://www.ecomengine.com/hubfs/images/featured/blog/what-is-aws.jpg --- [![eComEngine Logo](https://www.ecomengine.com/hubfs/Style%20Guide/Logos%20(svg)/%5BeComEngine%5DLogo-2019-linear.svg "eComEngine Logo")](https://www.ecomengine.com) [Demo](https://www.ecomengine.com/demo) [Free Trial](https://www.ecomengine.com/trial) ** ** ** [Free Trial](https://www.ecomengine.com/trial) ** ** ** [![FeedbackFive icon](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/feedbackfive-star-svg.svg "FeedbackFive icon") FeedbackFive Request Amazon Reviews and Feedback ](https://www.ecomengine.com/feedbackfive) [![sellerpulse-menu-icon(teal)](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-pulse-svg.svg "sellerpulse-menu-icon(teal)") SellerPulse Get FBA Insights and Alerts ](https://www.ecomengine.com/sellerpulse) [![RestockPro 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amount at the right time | | --- | --- | ](https://www.ecomengine.com/restockpro/inventory-forecasting) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-truck-svg.svg) | Purchase Orders Manage suppliers and inventory with ease | | --- | --- | ](https://www.ecomengine.com/restockpro/shipments) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-box-svg.svg) | Manage FBA Profits Get the details you need to make fast restocking decisions | | --- | --- | ](https://www.ecomengine.com/restockpro/fba-profit) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-kit-svg.svg) | Kitting Create kits or bundles from local inventory | | --- | --- | ](https://www.ecomengine.com/restockpro/fba-kitting) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-barcode-svg.svg) | Amazon Item Labels Customize stickers and labels with expiration dates and more | | --- | --- | ](https://www.ecomengine.com/restockpro#stickers) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/video-svg.svg) | See How It Works Watch a short recording to learn more | | --- | --- | ](https://www.ecomengine.com/restockpro/demo) [VIEW PRICING](https://www.ecomengine.com/pricing#restockpro) #### SellerPulse Features [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-bell-svg.svg) | Operational FBA Analytics See detailed insights for FBA fees, proceeds, sales, and product cost | | --- | --- | ](https://www.ecomengine.com/sellerpulse/fba-analytics) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-box-svg.svg) | Buy Box Monitoring Find out when you win or lose the Buy Box, including when it's suppressed | | --- | --- | ](https://www.ecomengine.com/sellerpulse/buy-box) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-image-svg.svg) | Listing Changes Detect suppressed listings, hijacker activity, and content changes | | --- | --- | ](https://www.ecomengine.com/sellerpulse/listing-monitoring) [| ![sellerpulse-analyze-returns](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-analyze-returns.svg)   | Analyze Returns Identify FBA return trends over time by ASIN, reason, and disposition | | --- | --- | ](https://www.ecomengine.com/sellerpulse/fba-returns) [| ![sellerpulse-magnifying-chart-svg](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-magnifying-chart-svg.svg)   | FBA Inventory Insights Plan FBA inventory and avoid unnecessary fees | | --- | --- | ](https://www.ecomengine.com/sellerpulse/inventory-returns) [| ![video-icn](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-video-svg.svg)   | See How It Works Watch a short recording to learn more | | --- | --- | ](https://www.ecomengine.com/sellerpulse/demo) [VIEW PRICING](https://www.ecomengine.com/pricing) Resources [** Case Studies ](https://www.ecomengine.com/case-studies) [** Webinars ](https://www.ecomengine.com/webinars) [** Free Tools ](https://www.ecomengine.com/tools) [** Events ](https://www.ecomengine.com/events) [** Help Center ](https://www.ecomengine.com/help) [** Blog ](https://www.ecomengine.com/blog) [** Agencies ](https://www.ecomengine.com/agency/feedbackfive) [** Seller News ](https://www.ecomengine.com/amazon-seller-news) [** Seller Tutorials ](https://www.ecomengine.com/sell-on-amazon) [** Partners ](https://www.ecomengine.com/partners) Guides [Getting More Amazon Reviews ](https://www.ecomengine.com/get-amazon-reviews) [Understanding Amazon Feedback 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[![eComEngine Logo](https://www.ecomengine.com/hubfs/Style%20Guide/Logos%20(svg)/%5BeComEngine%5DLogo-2019-linear.svg "eComEngine Logo")](https://www.ecomengine.com) [Demo](https://www.ecomengine.com/demo) [Free Trial](https://www.ecomengine.com/trial) ** ** ** [![feedbackfive-menu-icon(orange)](https://www.ecomengine.com/hs-fs/hubfs/brand-identity/style-guide/product-icons/feedbackfive-menu-icon(orange).png?width=50&height=50&name=feedbackfive-menu-icon(orange).png "feedbackfive-menu-icon(orange)") FeedbackFive Request Amazon Reviews and Feedback ](https://www.ecomengine.com/feedbackfive) [![sellerpulse-menu-icon(teal)](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-pulse-svg.svg "sellerpulse-menu-icon(teal)") SellerPulse Get FBA Insights and Alerts ](https://www.ecomengine.com/sellerpulse) [![RestockPro icon](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-arrow-svg.svg "RestockPro icon") RestockPro Simplify FBA Inventory Management ](https://www.ecomengine.com/restockpro) #### FeedbackFive Features [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/feedbackfive-envelop-svg.svg) | Review Automation Send automated review requests or customize your own message | | --- | --- | ](https://www.ecomengine.com/feedbackfive/automation) | ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/feedbackfive-bells-svg.svg) | Review Monitoring Quickly identify review trends | | --- | --- | [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/feedbackfive-alert-svg.svg) | Listing Alerts Monitor your Amazon listings and reputation 24/7 | | --- | --- | ](https://www.ecomengine.com/feedbackfive/alerts) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/feedbackfive-analytics-svg.svg) | Analytics & Reporting Analyze sales trends and brand performance | | --- | --- | ](https://www.ecomengine.com/feedbackfive/analytics) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/feedbackfive-agency-svg.svg) | Agencies & Aggregators Get access to all features to help your clients grow with FeedbackFive | | --- | --- | ](https://www.ecomengine.com/agency/feedbackfive) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/video-svg.svg) | See How It Works Watch a short recording to learn more | | --- | --- | ](https://www.ecomengine.com/feedbackfive/demo) [VIEW PRICING](https://www.ecomengine.com/blog/what-is-amazon-mws#) #### RestockPro Features [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-chart-svg.svg) | Forecasting Restock the right amount at the right time | | --- | --- | ](https://www.ecomengine.com/restockpro/inventory-forecasting) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-truck-svg.svg) | Purchase Orders Manage suppliers and inventory with ease | | --- | --- | ](https://www.ecomengine.com/restockpro/shipments) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-box-svg.svg) | Manage FBA Profits Get the details you need to make fast restocking decisions | | --- | --- | ](https://www.ecomengine.com/restockpro/fba-profit) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-kit-svg.svg) | Kitting Create kits or bundles from local inventory | | --- | --- | ](https://www.ecomengine.com/restockpro/fba-kitting) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/restockpro-barcode-svg.svg) | Amazon Item Labels Customize stickers and labels with expiration dates and more | | --- | --- | ](https://www.ecomengine.com/restockpro#stickers) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/video-svg.svg) | See How It Works Watch a short recording to learn more | | --- | --- | ](https://www.ecomengine.com/restockpro/demo) [VIEW PRICING](https://www.ecomengine.com/blog/what-is-amazon-mws#) #### SellerPulse Features [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-bell-svg.svg) | Operational FBA Analytics See detailed insights for FBA fees, proceeds, sales, and product cost | | --- | --- | ](https://www.ecomengine.com/sellerpulse/fba-analytics) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-box-svg.svg) | Buy Box Monitoring Find out when you win or lose the Buy Box, including when it's suppressed | | --- | --- | ](https://www.ecomengine.com/sellerpulse/buy-box) [| ![single-star](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-image-svg.svg) | Listing Changes Detect suppressed listings, hijacker activity, and content changes | | --- | --- | ](https://www.ecomengine.com/sellerpulse/listing-monitoring) [| ![sellerpulse-analyze-returns](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-analyze-returns.svg)   | Analyze Returns Identify FBA return trends over time by ASIN, reason, and disposition | | --- | --- | ](https://www.ecomengine.com/sellerpulse/fba-returns) [| ![sellerpulse-magnifying-chart-svg](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-magnifying-chart-svg.svg)   | FBA Inventory Insights Plan FBA inventory and avoid unnecessary fees | | --- | --- | ](https://www.ecomengine.com/sellerpulse/inventory-returns) [| ![video-icn](https://www.ecomengine.com/hubfs/images/decorative/illustrations/nav-icons/sellerpulse-video-svg.svg)   | See How It Works Watch a short recording to learn more | | --- | --- | ](https://www.ecomengine.com/sellerpulse/demo) [VIEW PRICING](https://www.ecomengine.com/pricing) Resources [** Case Studies ](https://www.ecomengine.com/case-studies) [** Webinars ](https://www.ecomengine.com/webinars) [** Free Tools ](https://www.ecomengine.com/tools) [** Events ](https://www.ecomengine.com/events) [** Help Center ](https://www.ecomengine.com/help) [** Blog ](https://www.ecomengine.com/blog) [** Agencies ](https://www.ecomengine.com/agency/feedbackfive) [** Seller News ](https://www.ecomengine.com/amazon-seller-news) [** Seller Tutorials ](https://www.ecomengine.com/sell-on-amazon) [** Partners ](https://www.ecomengine.com/partners) Guides [Getting More Amazon Reviews ](https://www.ecomengine.com/get-amazon-reviews) [Understanding Amazon Feedback ](https://www.ecomengine.com/amazon-feedback) [Amazon Listing Guide ](https://www.ecomengine.com/amazon-listing) [Amazon Brand Registry ](https://www.ecomengine.com/amazon-brand-registry) [Making the Most of Amazon FBA ](https://www.ecomengine.com/amazon-fba) Social Connect with eComEngine [**](https://twitter.com/intent/user?screen_name=eComEngine) Join Our Email List - Receive our monthly newsletter. - Stay up to date on Amazon policies. - Get tips to grow your business. Search **Menu** ** ** [Log In](https://www.ecomengine.com/login) [Free Trial](https://www.ecomengine.com/trial) --- Join Our Email List - Receive our monthly newsletter. - Stay up to date on Amazon policies. - Get tips to grow your business. # Beginner's Guide: What is Amazon MWS? [![Matt Ellis](https://www.ecomengine.com/hubfs/images/headshots/external/matt-ellis.jpg)](https://www.ecomengine.com/blog/author/matt-ellis) By [Matt Ellis](https://www.ecomengine.com/blog/author/matt-ellis) What is Amazon MWS? You could read a dozen articles about it and still have no idea. That’s because Amazon Marketplace Web Services are a little complicated — they’re actually a broad assortment of APIs that sellers and third-party app makers can use to create software and enhance the Amazon seller experience… but knowing that really just raises more questions than it answers! In this guide, we break down Amazon MWS in a way that anyone can understand, programming background or not. We’ll explain APIs, what you can do with Amazon MWS, and how the Amazon Marketplace Appstore works. ## What is Amazon MWS? Technically speaking, Amazon Marketplace Web Services, or Amazon MWS, is a collection of APIs that allow you to extract data and perform operations within an Amazon seller account. Essentially, it’s a way for sellers and third-party software developers (like us) to design original software that works in the Amazon marketplace. Some sellers use it to create their own inventory management system or other such workarounds. Developers also use it to build and sell original software with special features for Amazon sellers. ## What are APIs? To really understand what Amazon MWS is, it helps to know what APIs are. We see these initials a lot in the tech world, but what exactly do they mean? Basically, APIs help one program interact with another. Programs can’t just talk to one another like people can. For one thing, they each use very specific formatting, so it’d be like two people speaking different languages. But on top of that, each program has a limited range of what it can do, so it may not even be capable of accomplishing what’s being asked. APIs act as an intermediary to avoid those problems and smooth over any wrinkles in communication between programs. An easy way to think about APIs is that they’re like [menus at a restaurant](https://www.leverege.com/blogpost/what-is-an-api). The world’s greatest sushi chef might not know how to make a burger, so they only put items on the menu that they know. Instead of dishes the chefs know how to make, APIs use **commands the program understands**, pre-formatted in their native language. Put it all together, and you see what Amazon MWS is: the link that lets sellers and other parties interact with and control the internal Amazon systems. ## What Can You Do With the Amazon MWS API? Amazon MWS is more of a means to an end than the end itself; it doesn’t offer features or services per se, but it does enable developers to make their own features. If you’re an Amazon seller and want to use a third-party app for something like automatic repricing or [stock alerts](https://www.ecomengine.com/restockpro), all you have to do is go to the Marketplace Appstore, or as it's now called, the Selling Partner Appstore. We talk more about that below, but in a nutshell, it’s where you can buy apps that incorporate Amazon MWS. On the other hand, if you actually want to build your own program, here’s a brief rundown on the kinds of things you can do with Amazon MWS: - **Inventory management:** batch uploads, check stock levels, review pricing, etc. - **Order management: **extract and download order data, obtain payment information, schedule reports, etc. - **Reports management:** request reports, query the status of reports, download reports - **FBA management: **create and check the status of inbound shipments, submit fulfillment orders, track and manage outbound shipping requests ## What is the Amazon Marketplace Appstore? If you want to avoid spending time and money on developing custom software, you can simply go to the Amazon Marketplace Appstore and choose from a variety of existing apps for the Amazon services you need. *Update: In 2022, the Amazon Marketplace Appstore underwent a couple of name changes. While it was briefly called the Seller Central Partner Network, it's now known as the [Selling Partner Appstore](https://sellercentral.amazon.com/selling-partner-appstore/ref=sd_spa_hp_top).* This is a convenient and time-saving solution — the difficulty in creating an app from scratch is already taken care of. Here you can find aid for an array of services: [review software](https://www.ecomengine.com/feedbackfive), price automation, shipping solutions, product scouting, discoverability, reports, listing organization — you name it. It’s a great resource for small and medium-sized Amazon sellers who want to stay competitive or simply automate their tasks to save time. It’s worth taking the time to explore, especially if you’re looking for solutions to a particular problem. Don’t forget to [check out our apps](https://sellercentral.amazon.com/apps/store/search?keywords=eComEngine&marketplacesIds=US&supportedLanguages=en&pageNumber=1&locale=en-US) while you’re there! [![Illustration of mobile phone with text, "Don't miss Amazon updates" above button with text, "Get newsletter"](https://no-cache.hubspot.com/cta/default/5147382/af233769-2b79-46b3-a47f-7cb9bde3c660.png)](https://cta-redirect.hubspot.com/cta/redirect/5147382/af233769-2b79-46b3-a47f-7cb9bde3c660) ![newsletter-email-laptop](https://no-cache.hubspot.com/cta/default/5147382/interactive-177527396632.png) ![newsletter-email-laptop](https://no-cache.hubspot.com/cta/default/5147382/interactive-177527396632.png) Originally published on April 1, 2021, updated January 17, 2025 This post is accurate as of the date of publication. Some features and information may have changed due to product updates or Amazon policy changes. ## You May Also Like These Stories on Amazon [![12:53 AMClaude responded: Illustration of an upward graph with a magnifying glass, with the text "Prime Day Profit Scorecard"Illustration of an upward graph with a magnifying glass, with the text "Prime Day Profit Scorecard"](https://www.ecomengine.com/hubfs/images/featured/blog/prime-day-profit-scorecard.png) ](https://www.ecomengine.com/blog/prime-day-metrics-amazon-sellers) ### [The Prime Day Profit Scorecard: 10 Metrics Amazon Sellers Should Watch Daily](https://www.ecomengine.com/blog/prime-day-metrics-amazon-sellers) June 24, 2026 | [![Illustration of an upward trend chart and reviews, with text reading "Prime Day Review Strategy"](https://www.ecomengine.com/hubfs/images/featured/blog/prime-day-review-strategy.png) ](https://www.ecomengine.com/blog/prime-day-review-strategy) ### [Prime Day Review Strategy: Turn the Traffic Spike Into Long-Term Trust](https://www.ecomengine.com/blog/prime-day-review-strategy) June 22, 2026 | [![Downloadable PDF cover with title "Prime Day Profit Protection Checklist"](https://www.ecomengine.com/hubfs/images/featured/blog/prime-day-profit-protection-checklist.png) ](https://www.ecomengine.com/blog/prime-day-readiness-plan-amazon-sellers) ### [Prime Day Is in June: The Last-Mile Readiness Plan Amazon Sellers Need Now](https://www.ecomengine.com/blog/prime-day-readiness-plan-amazon-sellers) June 8, 2026 | ## No Comments Yet Let us know what you think ### eComEngine 14321 Winter Breeze Drive Suite 121 Midlothian, VA 23113 Call us: [800-757-6840](tel:800-757-6840) Company Legal Software Resources [![GS1 US Channel Partner](https://www.ecomengine.com/hubfs/images/partners/logos/gs1-us-channel-partner.png "GS1 US Channel Partner")](https://www.ecomengine.com/get-gtin-amazon) ![Amazon Marketplace Developer Council Founding Member](https://www.ecomengine.com/hubfs/brand-identity/logos/amazon/amazon-marketplace-developer-council-optimized.png "Amazon Marketplace Developer Council Founding Member") ![Amazon Web Services](https://www.ecomengine.com/hubfs/brand-identity/logos/amazon/amazon-web-services.svg "Amazon Web Services") ![Amazon Selling Partner Appstore Software Partner badge](https://www.ecomengine.com/hubfs/brand-identity/logos/amazon/amazon-software_partners-badge.png "Amazon Selling Partner Appstore Software Partner badge") ![Amazon Marketplace Developer Council Founding Member](https://www.ecomengine.com/hubfs/brand-identity/logos/amazon/amazon-marketplace-developer-council-optimized.png "Amazon Marketplace Developer Council Founding Member") ![Amazon Web Services](https://www.ecomengine.com/hubfs/brand-identity/amazon-web-services.svg "Amazon Web Services") Copyright© 2007-2026 eComEngine, LLC. All Rights Reserved. eComEngine®, FeedbackFive®, RestockPro®, and SellerPulse® are trademarks or registered trademarks of eComEngine, LLC. Amazon's trademark is used under license from Amazon.com, Inc. or its affiliates. *We improve our products and advertising by using Microsoft Clarity to see how you use our website. By using our site, you agree that we and Microsoft can collect and use this data. Our [privacy policy](https://www.ecomengine.com/privacy-policy) has more details.* ```json { "@context" : "http://schema.org", "@type" : "Organization", "address" : { "@type" : "PostalAddress", "addressCountry" : "US", "addressLocality" : "Midlothian", "addressRegion" : "VA", "postalCode" : "23113", "streetAddress" : "14321 Winter Breeze Drive Suite 121" }, "alternateName" : "eComEngine, LLC", "description" : "Amazon Seller Tools", "email" : "info@ecomengine.com", "image" : "https://www.ecomengine.com/hubfs/images/decorative/illustrations/amazon-seller-tools.png", "logo" : "https://www.ecomengine.com/hubfs/brand-identity/logos/ecomengine-logos/ecomengine-logo-stacked.png", "naics" : "511210", "name" : "eComEngine, LLC", "sameAs" : [ "https://www.facebook.com/eComEngine/", "https://twitter.com/eComEngine" ], "telephone" : "800-757-6840", "url" : "https://www.ecomengine.com" } ``` ```json { "@context" : "http://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Matt Ellis" }, "dateModified" : "2025-01-17", "datePublished" : "2021-04-01", "description" : "What is Amazon MWS and how does it work? Learn how software companies and sellers use Amazon Marketplace Web Services.", "headline" : "Beginner's Guide: What is Amazon MWS?", "image" : { "@type" : "ImageObject", "url" : "https://www.ecomengine.com/hubfs/images/featured/blog/what-is-aws.jpg" }, "mainEntityOfPage" : { "@id" : "https://www.ecomengine.com/blog/what-is-amazon-mws", "@type" : "WebPage", "description" : "What is Amazon MWS and how does it work? Learn how software companies and sellers use Amazon Marketplace Web Services." }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.ecomengine.com/hubfs/brand-identity/logos/ecomengine-logos/ecomengine-logo-stacked.png" }, "name" : "eComEngine, LLC" } } ```