Many IT professionals are familiar with AWS Lambda’s reputation for running stateless workloads and scaling efficiently. Recently, AWS introduced Durable Functions—a significant enhancement enabling developers to coordinate complex, multi-step workflows over durations ranging from seconds to up to one year.
Stepping Up the Workflow Game
In practical terms, this development means organisations and Managed Service Providers (MSPs) can automate lengthy business logic or AI workflows without incurring costs for idle compute resources. Waiting for external events, approvals, or human decisions no longer requires running persistent stateful services or keeping EC2 instances active unnecessarily.
Why Should IT Leaders Care?
This update is particularly relevant for small to medium-sized businesses (SMBs) and organisations governed by strict compliance:
Pay only for what you use: Lambda Durable Functions eliminate charges during wait periods, delivering real savings.
Built-in reliability: Orchestrating multi-step processes—managing retries, timeouts, and failures—is handled seamlessly, reducing operational overhead.
Human and system triggers: Workflows can pause for human approval or external API responses, resuming only when required and without additional cost.
Caveats and Considerations
IT architects should note this solution may not suit every use case, particularly those demanding extremely low latency or specific data persistence requirements. However, for teams previously combining Step Functions, Lambda, and custom queuing logic to build multi-step processes, Durable Functions offer a streamlined and robust alternative.
AWS has elevated serverless orchestration with Durable Functions, presenting a compelling option for organisations seeking smarter, cost-effective workflow automation. Those willing to adopt early—especially SMBs—may realise significant operational and financial benefits.
Original Story: AWS Blog – Build multi-step applications and AI workflows with AWS Lambda Durable Functions: https://aws.amazon.com/blogs/aws/build-multi-step-applications-and-ai-workflows-with-aws-lambda-durable-functions/
