ActivityStartedEventDetails - AWS Step Functions
This documentation is a draft for private preview for regions in the AWS European Sovereign Cloud. Documentation content will continue to evolve. Published: January 12, 2026.

ActivityStartedEventDetails

Contains details about the start of an activity during an execution.

Contents

workerName

The name of the worker that the task is assigned to. These names are provided by the workers when calling GetActivityTask.

Type: String

Length Constraints: Maximum length of 256.

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: