Avoid Special Character when creating an Employee

Dear All,

We want to avoid spacial chracter (like "!@#$%^&*()_+-=[]{}|\:;""<>,.?/~`" and minumum lengt 2 character) when people are creating internal and external user. Especially external user creation process from Web Shop.

I know that I can set min. lenght from Designer "last name" column but I need a script to avoid special characters. Also I hope  I don't need special customization for Web Desginer? Any idea?

One Identity Software 9.1.1

Thank you for support

Best regards

Samet