I'm trying to understand the difference between session variables and flow variables. From what I understood from the training videos, the difference lies in the scope of these variables. Session variables are meant to persist between flows, but flow variables are not supposed to persist.
In practice, I have found that if I use a flow variable, and use a flow reference to call a separate flow (not a subflow) I can still see this flow variable. Similarly, if I set a flow variable in a referenced flow, once I am back in the calling flow, I can see the flow variable. Surely I shouldn't be able to see a flow variable once I have left the flow which sets the variable?
