There is an OOB field Mobile phone (ph_number type) field on sys_user and it is on the form. When a user enters a 10 digit number it is formatted to (xxx) xxx-xxxx. I do not see any client script or dictionary configurations. How to find where the formatting is configured?
This is expected behaviour on field type since the Phone Number data type includes built-in formatting logic. Probably the most common format North American Numbering Plan. It is straight forward from SN configuration. Alternatively, you can create new custom field with number data type & restrict the numbering digits using RegEx.
