How to write a validation expression for a macro?

[rajgowd1]

Hi,

i have defined macro like services($searchterm$,$mng$,$fng$)

how can we write validation expression? if we don't mention $searchterm$ while searching, it displays with validation message.

[sundareshr · Accepted solution]

Try this

Validation expression: isnotnull($searchterm$)
Validation error message: The search term value that you have provided is not valid. Enter a valid search term.

[duartet]

It's not working for me. Maybe something changed since 2016?