> ## Documentation Index
> Fetch the complete documentation index at: https://docs.frayme.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Subflow

> Run a callable flow as one or more child cases and wait for them.

Type `subFlow` in the builder; saved as a `spawn` and `join` pair the runner executes.

| Field                      | Meaning                                                                                                                                      |
| -------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------- |
| **Callable workflow**      | A flow with **Callable as subflow** on                                                                                                       |
| **Fan out over**           | Array expression creating one child per element; **Child ID** identifies each                                                                |
| **Child role in parent**   | UBO, owner, legal representative, none, or an expression                                                                                     |
| **Pass data to the child** | Maps the child's inputs                                                                                                                      |
| **Output variable**        | Where the children's outputs are collected                                                                                                   |
| **Advanced**               | Subject construction, **Timeout (seconds)** with **On timeout** (partial or fail), re-entry and removal behaviour, **Max cases per element** |

Analysts see the children under **Affiliates** on the parent and can open each child; approving a parent with pending children asks **Finish pending sub-cases?**.