Reaction matrix - string not empty

Reaction matrix - string not empty

Hi all,

How can I fire a function when a string changes from *empty* to *not empty* (string<>""). Tried string reaction matrix using "greater than *" with wildcards enabled. But that doesnt work in all cases.

Additonal question:
What Wildcards are supproted in string reaction matrix?


This is a migrated post! Originally posted on 15.12.2020 by user scheweeric. Please be aware that information can be outdated.