This tab is used to add manual validation to type text, and number
Validation tab header consists of five columns
1] variable- name of the variable on that we want to apply validation
2] min- If variable type is string then its used for minimum length required, and if type is “number” then minimum number
3] max- If variable type is string then its used for maximum length accepted, and if type is “number” then maximum number to be allowed.
4] regex- If you want to accept specific regex matching input from the user, then add regex on the regex column.
Note: If you want to apply regex on a particular variable, add that same variable as type in the settings tab type column. So, I will consider its regex type.
5] Message:- This column Is used for adding an error message if validation fails for that variable