Mayúscula sostenida en los textos abiertos

You're welcome :slight_smile:

You can look here and then you can add the character you want:
"regex(., '[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+.[A-Za-z]{2,4}')" this link is very helpful.

So, you could use regex(., “^[A-Z (.*]{1,100}$”) notice that I added space between Z and the parenthesis ( .

Thank