Amazon SNS now supports message payloads up to 1 MiB
Amazon SNS increases message payload size limit from 256 KiB to 1 MiB, allowing up to four times larger messages to be published to topics
Amazon Simple Notification Service (Amazon SNS) has increased the message payload limit from 256 KiB to 1 MiB, allowing larger data exchanges in a single message for workloads like application integration, IoT, and generative AI. By setting the new MaximumMessageSize topic attribute, you can publish messages up to 1 MiB on SNS standard and FIFO topics. Topics with MaximumMessageSize greater than 256 KiB support up to 100 subscriptions to Amazon SQS, Amazon Data Firehose, and AWS Lambda. This feature is available in all AWS regions where Amazon SNS is offered.
Why it matters
Amazon SNS is a fully managed pub/sub messaging service that enables decoupling and scaling of microservices, distributed systems, and serverless applications. This update helps handle larger data volumes in single messages for workloads such as application integration, IoT, and generative AI