This feature enables a new parameter "Allow check number validation" in cash and bank management to validate check number when user generates payment. With the parameter turned on, firstly, it will validate if check number exceeds the defined interval with last check number. Users can set up the check number interval. If the check number exceeds the defined interval with last check number, user needs to confirm before proceeding to avoid entering wrong check number manually. Secondly, it will validate if there is any character in the check number.