Sell on Amazon Sign in
This article applies to selling in: United States

Customer Service by Amazon for seller-fulfilled orders

What is Customer Service by Amazon (CSBA)?

Customer Service by Amazon is a paid service where Amazon takes care of customer service on your behalf for your self-fulfillment orders. We will direct customer inquiries for these orders to Amazon Customer Service so that you do not need to handle them yourself. At this time, CSBA is available to select sellers on an invitation-only basis.

CSBA Benefits

  • CSBA helps improve customer experience by providing a 24-hour, high-quality customer service throughout the year.
  • CSBA supports customers in the marketplace-supported language via phone, instant message, and email.
  • CSBA’s high-quality customer service may help you reduce A-to-z Guarantee claims, Order Defect Rates (ODR), and negative reviews.
  • CSBA can help you manage customer service in response to changing demands (for example, during the holiday period).
  • CSBA helps you save time and may reduce customer service cost.

CSBA Requirements

To use CSBA, you will need to do the following:

  • Agree to the Customer Service by Amazon Terms of Use.
  • Be registered as a Professional Seller in good standing on Amazon.
  • Reply to CSBA inquiry – Amazon Customer Service will answer customer inquiries without requesting your input as much as possible. However, in some cases, CSBA will reach out to sellers for additional information. Sellers are required to reply to CSBA inquiry within 24 hours (including weekends and holidays). Otherwise, CSBA will handle customer inquiry in its judgment to best serve the customer. Amazon Customer Service will communicate with sellers in your preferred language.

Return and Refund policy

  • Amazon Customer Service will follow standard Amazon return policies for handling customer inquiries. To ensure a consistent experience for customers, Amazon requires CSBA sellers to set forth return policies that are at least as favorable as the Amazon return policies. CSBA sellers should update their return policy page if they have a different return/refund policy that provides a better customer experience than the Amazon return policies.
  • CSBA sellers are required to follow the information on the Customer returns for international sales page.

Opt-in/Opt-out of CSBA

How do I opt-in to CSBA?


  1. On Seller Central, go to Account Info.
  2. In the Your Services section, select Manage.
  3. In the You are signed up for section, select Opt-in to CSBA.

    This will redirect you to the opt-in page with information about the CSBA service.

  4. Select Opt-in Now.

    Once you enroll, you will be able to view this service as Active under the Your Services section.

At this time, CSBA is an invitation-only program. If you are interested in CSBA, please click here.

Important: Once you opt-in, CSBA service will start within an hour. Customer inquiries for orders placed prior to your CSBA enrollment will not be covered by CSBA.

How can I opt-out of CSBA?


  1. On Seller Central, go to Account Info.
  2. In the Your Services section, select Manage.
  3. In the You are signed up for section, select Opt-out of CSBA next to Customer Service by Amazon.
  4. Select Opt-out now.
Important: You can choose to register again for CSBA later. However, once you opt-out, you will need to handle all customer queries for any new self-fulfillment orders. Existing orders will continue to be handled by Amazon.

Customer inquiries

What kind of customer inquiries are not included in CSBA?

CSBA provides customer service for all post-order queries for your self-fulfillment orders except queries related to Invoice and Product Customization. CSBA does not provide customer service for pre-order customer inquiries. To handle these types of inquiries, use the Buyer-Seller Messaging Service.

Do I need to handle Buyer-Seller Messages after using CSBA?

Yes, you still need to answer pre-order inquiries or Fulfillment by Amazon (FBA) order related inquiries in the Buyer-Seller Messaging Service. CSBA only supports post-order queries for your self-fulfillment orders. If a customer contacts you for a self-fulfillment order related inquiry, please transfer it to the CSBA team (csba-cn2us@amazon.com) and they will handle it on your behalf.

How will CSBA handle customer inquiries?

CSBA will provide high-quality, real-time customer service by Amazon through phone, instant message, and email channels. In some cases, the CSBA team will need to work with you to find a resolution and reply to the customer. Our commitment to the customer usually will be within two days.

How will CSBA handle returns?

CSBA will use the standard Amazon return policies to handle customer returns. However, you are required to follow the Customer returns for international sales for returns and refunds.

How will I receive communication from CSBA?

You will be able to receive and reply to messages from the CSBA team in your Case Log in Seller Central. You will also receive CSBA notifications based your default email address in your Seller Central account.

How will CSBA answer product related customer inquiries?

CSBA will try to answer a customer inquiry based on information available on the product detail page. If we cannot solve a customer's inquiry, we will send a message to your account via Case Log for further assistance. We encourage you to review and update the product detail page regularly to ensure the quality of the content when viewed by customers and customer service.

Whom should I contact if I have questions about CSBA?

You can contact Selling Partner Support (SPS) from Contact Us on Seller Central.

Sign in to use the tool and get personalized help (desktop browser required). Sign in


Reach Hundreds of Millions of Customers

Start Selling On Amazon


© 1999-2020, Amazon.com, Inc. or its affiliates