What is the maximum size of a single message that can be sent through Amazon SNS?

Amazon Simple Notification Service (SNS) has a maximum message size limit of 256 KB for a single message. This means that when you publish a message to an SNS topic, the content of that message cannot exceed this size. It’s important to note this limit when designing applications that utilize SNS to ensure that your messages are structured within this constraint.

If you need to send larger messages, you can consider breaking the message into smaller parts or using alternative methods such as Amazon S3 for sending payloads that exceed this limit while only including a reference to the location of the data in the SNS message. Understanding these limits is crucial for effective message handling and ensuring that your system operates without errors related to message size.