Hi, I am using masking for a text field to restrict it to 16 characte

its a portal version I am using, I tried JS validation dint work properly because its dynamic , e.g, if I have two rows Number from the image above, if I have validation max char 16, its taking total number of characters from both rows since the field id is the same for both rows, if I can modify the message thrown by masking i.e ("input format incorrect") that would help

its a portal version I am using, I tried JS validation dint work properly because its dynamic , e.g, if I have two rows Number from the image above, if I have validation max char 16, its taking total number of characters from both rows since the field id is the same for both rows, if I can modify the message thrown by masking i.e ("input format incorrect") that would help