Amazon Business APIs no longer require the use of AWS IAM or AWS Signature Version 4
over 1 year ago by AnaS_Amazon
Starting November 1, 2023, Amazon Business APIs no longer require the use of AWS Identity and Access Management (IAM) or AWS Signature Version 4. This means developers don’t need to register for IAM resources or sign an Amazon Business API request with AWS Signature Version 4.
Developers who signed up for Amazon Business APIs before November 1, 2023 can stop sending AWS Signature Version 4 at their convenience. For requests with AWS Signature V4, we’ll disregard the signature and proceed with LWA authorization. Amazon Business APIs will continue to use existing access and refresh tokens for each Amazon Business API request.
This change applies to all Amazon Business marketplaces and regions.