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Flow Link

It is possible to combine processes that were implemented in a different Flow by adding a Flow Link to another Flow or Sub-flow; this way a certain main Flow can link to other Flows where some other tasks need to be performed or when some extra information is required.

Linking to a regular Flow (a Flow with a User Intent or Prompt Trigger) implies that the parent Flow executes until the Flow Link is reached, then the parent Flow is dropped and execution control is passed on to the linked child Flow; it is possible to use variables to pass information to the child Flow, but not back to the parent Flow.
Linking to a Sub-flow implies that the active parent Flow will still be the active Flow after the execution of the Sub-flow has finished; in this case it is possible to use variables to pass information to the child Flow and also back to the parent Flow.