What is an Input Mask?
An input mask is an expression that helps to define what type of contact is allowed in a given field on a template. The idea behind the input mask is to keep the data entry process somewhat uniform and minimize the chances for incorrect data to be entered into the field. In some cases, the input field entry can be configured to allow automatic field input as a way of saving time and resources. The creation of an input mask takes place during the computer programming process. Fields on a template are established with specific control values. The values make it impossible to enter data that is not compatible with the values. For example, a field that contains an input mask that only allows letters will automatically reject the input of numbers. Another common application of an input mask has to do with automatically converting the input into an acceptable format. For example, the input mask may require that the date field on the template specifies a format that is structured as date/mont
