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Flow variables
Flow variables provide a means of passing information throughout a flow instance without requiring that the information to be passed through data links. flow variables are name-value pairs that persist, unless deleted.
Flow variables scope
Under Flow Engine context, all flow variables (both custom and special) defined for the flow instance, go out of scope when the flow instance completes execution. It does not affect the flow variables of the other instance.

Flow variables
Flow variables provide a means of passing information throughout a flow instance without requiring that the information to be passed through data links. flow variables are name-value pairs that persist, unless deleted.
- Flow variables locations
  Flow variables can be specified at different locations.
- Flow variables scope
  Under Flow Engine context, all flow variables (both custom and special) defined for the flow instance, go out of scope when the flow instance completes execution. It does not affect the flow variables of the other instance.
- Thread local flow variables
  A 'thread local flow variable' is a special variable, in that each thread running under a flow instance gets a copy of the flow variable when referenced. Each thread then works on its own copy during flow execution. Any action (get, set, delete, increment, decrement, resolve), on the thread local flow variable, is performed on the copy of the flow variable associated with that thread.

Flow variables scope

Under Flow Engine context, all flow variables (both custom and special) defined for the flow instance, go out of scope when the flow instance completes execution. It does not affect the flow variables of the other instance.

Under non-flow engine context, for example, running a map under HCL API, using flow library functions in the map rules, all flow variables defined with the mapping functions go out of scope when the top map finishes execution. All flow variables defined are visible with top and RUN maps of the map. Each map instance execution gets its own set of flow variables and no two map instances share the same set of the variables.