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Step Functions is the serverless finite state machine service from AWS. With DynamoDB, Lambda, and API Gateway, it forms the core of serverless AWS services. It offers direct integration with many AWS services**, so you don't need to use Lambda Functions as glue. But Lambda runs your code, making debugging much more straightforward than running a managed service that's essentially a black box. Here you will find the most common issues when working with Step Functions, especially when starting with the service.