Reuse a workflow with a subworkflow step
Add a subworkflow step with the saved child workflow’s ID when the parent should reuse another workflow. The compiler loads the child and validates it recursively.
For example, a weekly executive review can reuse regional-yield and supplier-risk workflows, then combine their results.
A subworkflow is different from a subagent: a subworkflow calls a saved, versioned workflow by ID.
Fan out with a map step
Use a map step when a run must process a list that’s only known at run time. Configure a child step and bounded concurrency.
When the map finishes, its fan-in result records the total, the number that succeeded and failed, and which items failed, so you can retry only those. Last modified on October 1, 2026
