Thanks, Martin; I mistakenly thought that VBA.Shell returned the Exit code, but now I understand it returns the Process ID.
Your suggestion, VBA Shell and Wait with Exit Code, solves my issue.

That looks like VBA question, rather than WinSCP question.
Would this help?
VBA Shell and Wait with Exit Code

Hi everyone,

I am calling a WinSCP script from VBA code, invoking WinSCP from the Shell function.

In my testing, I had an example for which mkdir aborted.
For this case, the WinSCP log shows the Exit code: 1.

But Shell returned the error code = 0.

I want to make my code bullet-proof, so I am looking for code to capture the WinSCP Exit code?

Thanks, Leigh