Hi, when I create text variable and number of attempts is set to 3 I can not write more than 3 characters in the text field and the text field is automatically locked.
That’s because you have set the Submit key to Auto. That means each character you type is different from the correct value, it will be counted as one attempt.
In your case, you can consider adding more correct values or switching to Survey mode.
You do not set any correct value which means that text box has no correct value. So, each character you type is counted as one attempt. You can only type 3 characters due to you have set 3 attempts. After 3 attempts, the object will be disabled.
Otherwise, if you set the Attempts to Infinite, you can make as many attempts as you want, so the object won’t be disabled.