Order of commands within an action

[brolly33]

Found this prior post from @JasonWalker and others that might help:

Relevant substitution error

This is a complex topic that’s not very well explained in many places, but I’ve hit it a few times. In your ActionScript, you have a ‘prefetch’ statement. So, before the action begins to execute, the client has to evaluate the ActionScript to figure out the values of the prefetch. But because the action is not actually Executing yet, no values are set for any of the parameters. So when a statement like wait sh "{(parameter "POLICY_RUNFILE")}" tries to evaluate (during the Download phase, n…