AWS Lambda is a serverless compute service that runs code in response to events without provisioning or managing servers. It integrates with S3, API Gateway, DynamoDB, Kinesis, and more, enabling event-driven architecture and microservices at scale.

Lambda is available within AWS China regions (Beijing, Ningxia), but global Lambda endpoints and features (like Lambda layers, Edge, Step Functions cross-region) are limited. China regions require separate account setup and ICP filing for public endpoints. Despite these splits, core compute functions operate reliably for domestic workloads.

The information regarding service availability in China is provided for general reference purposes only. Due to the dynamic nature of network conditions and regulatory environments, the actual accessibility of these services may vary over time and by location. Users are advised to verify the current status independently.