macro input validation

[narwhal]

I'm having trouble getting input validation to work on my macro. I want to pass in a text string, not a number, but can't find any examples that appear to work for me. Thoughts?

[narwhal · Accepted solution]

OK, trial and error finally paid off.

My input variable is called st, so:

validation = st="blah" OR st="blahblah"

errormsg = usage: mymacro(st) where st is blah or blahblah