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Amazon SQS increases maximum message payload size to 1 MiB

Posted on: Aug 11, 2025

Amazon Simple Queue Service (Amazon SQS) has increased the maximum message payload size from 256 KiB to 1 MiB, enabling customers to send and receive larger messages through their Amazon SQS standard and FIFO queues.

Amazon SQS is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. Customer workloads have evolved, with use cases such as application integration, IoT, and artificial intelligence (AI) requiring larger volumes of data to be exchanged in individual messages. With this launch, customers can send and receive message payloads up to 1 MiB without offloading data to S3 using the Amazon SQS Extended Client Library or implementing custom alternatives.

In conjunction with this launch, Amazon Lambda’s event source mapping for SQS has been updated to support 1 MiB payloads. This update allows customers to continue using SQS and Lambda together to process their larger payloads.

Customers can begin sending payloads up to 1 MiB today in Amazon Web Services China (Beijing) Region, operated by Sinnet and the Amazon Web Services China (Ningxia) Region, operated by NWCD. To learn more about Amazon SQS, see the Amazon SQS Developer Guide. To learn more about integrating SQS with Amazon Lambda, see the Amazon Lambda documentation.