Custom Error Message When No Records

[bertal34]

I have a yxmd file.  I have a Directory tool.  If no records (zero) are output from the Directory, I would like to show a custom error message (presumably using the Message tool).  The workflow config will then Cancel Workflow on Error.  How do I do this?

[bertal34 · Accepted solution]

Nevermind, answered my own question using the Count Records tool.