How to Add Your Offer to an Existing Product Using Amazon Marketplace Web Service (MWS)

How to Add Your Offer to an Existing Product Using Amazon Marketplace Web Service (MWS)

As a data scientist or software engineer, you may find yourself needing to interact with Amazon’s vast marketplace. One common task is to add your offer to an existing product. In this piece, we’ll dig into the Amazon Marketplace Web Service (MWS) and provide a step-by-step guide on how to accomplish this task.

What is Amazon MWS?

Amazon MWS is a suite of APIs and data feeds that allow Amazon sellers to programmatically exchange data on listings, orders, payments, reports, and more. It’s a powerful tool that can streamline your operations if you’re selling on Amazon’s platform.

Why use Amazon MWS?

MWS provides a more efficient and automated way of managing your Amazon operations. It can save you time by automating tasks that you would otherwise do manually. Moreover, by integrating your system with MWS, you can keep your product information up-to-date, manage orders and process payments more efficiently.

Prerequisites

Before we get started, you need to have an Amazon Professional selling plan, be registered as a developer on Amazon, and have an MWS-authorized Amazon seller account.

Step-by-step guide to adding your offer to an existing product using Amazon MWS

Step 1: Get the necessary MWS credentials

To interact with MWS, you’ll need your Seller ID, MWS Auth Token, AWS Access Key ID, and Secret Key. You can obtain these by signing into your Amazon seller account and navigating to the “User Permissions” page under the “Settings” tab.

Step 2: Use the Product API to locate the product

The Product API allows you to retrieve information about a product. You can use the ‘GetMatchingProductForId’ operation, passing the product’s ASIN as a parameter.

client = mws.Products(
    access_key="YOUR_ACCESS_KEY",
    secret_key="YOUR_SECRET_KEY",
    account_id="YOUR_SELLER_ID",
    auth_token="YOUR_MWS_AUTH_TOKEN"
)

response = client.get_matching_product_for_id(
    marketplace_id="ATVPDKIKX0DER",
    id_type="ASIN",
    ids=["ASIN1", "ASIN2"]
)

Step 3: Add your offer with the Feeds API

Once you have the product details, you can add your offer using the Feeds API. You’ll need to create an XML feed, using the ‘Product’ feed type (_POST_PRODUCT_DATA_), to add your offer.

<Message>
  <MessageID>1</MessageID>
  <OperationType>Update</OperationType>
  <Product>
    <SKU>Your_SKU</SKU>
    <StandardProductID>
      <Type>ASIN</Type>
      <Value>Product_ASIN</Value>
    </StandardProductID>
    <Condition>
      <ConditionType>New</ConditionType>
    </Condition>
    <Price>
      <StandardPrice currency="USD">Your_Price</StandardPrice>
    </Price>
  </Product>
</Message>

You can then submit your feed using the submit_feed method.

feed = mws.Feeds(
    access_key="YOUR_ACCESS_KEY",
    secret_key="YOUR_SECRET_KEY",
    account_id="YOUR_SELLER_ID",
    auth_token="YOUR_MWS_AUTH_TOKEN"
)

response = feed.submit_feed(
    FeedContent=xml_content,
    FeedType='_POST_PRODUCT_DATA_',
    MarketplaceIdList=['ATVPDKIKX0DER'],
)

Step 4: Check the status of your submission

After submitting your feed, you can check its status using the get_feed_submission_result operation.

response = feed.get_feed_submission_result(
    FeedSubmissionId='Feed_Submission_ID'
)

And that’s it! Your offer has now been added to an existing product on Amazon.

In conclusion, Amazon MWS offers a powerful and flexible way to manage your Amazon selling activities. While it may seem complex at first, once you understand the basics, it becomes an invaluable tool in your e-commerce arsenal. With MWS, you can easily automate your operations, leaving you more time to focus on growing your business.

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