For years, 256 KB has been the industry benchmark for standard message payloads in serverless architectures. It was originally a significant upgrade from 64 KB, designed to allow developers to pass richer data without needing external storage. Technical Performance Review
: In services like AWS SQS, payloads are often billed in 64 KB "chunks." This means a single 256 KB message is technically billed as four requests, which is a critical detail for cost-optimization reviews.
: While 256 KB is ample for simple JSON notifications or metadata, it is increasingly seen as restrictive for modern "event-driven" architectures that need to pass larger objects or detailed logs.
If you're asking about the size limit common in cloud services like Amazon SNS or SQS , here’s a technical review of how it functions and its current relevance. Context: The "Cloud Standard" Payload Limit