Sub-journey steps are planned and not yet available. The description below reflects the intended design.
Intended idea
Sub-journeys would run inline, with the parent journey passing values in and receiving outputs back. From the parent’s perspective, the sub-journey would look like a single step — it runs, it either passes or fails, and it can expose outputs the parent uses downstream. Some likely uses:- Shared authentication or setup sequences reused across many journeys
- Complex prerequisite flows (seeding a customer record, provisioning a subscription) that several workflows depend on
- Decomposing a large journey into named, testable pieces

