Step 1: Field Validation is an automatic feature of our email, phone number, credit card, address, and date form fields.
Step 2: Click on the field to adjust the validation settings. You can adjust the format, language, country formatting, and more in the left-hand menu under the Field Specific section.
Step 3: If a field is submitted using an improper format, a message will alert the user and the form will not submit. The supporting text under the field can be used to provide an example of correct formatting.
To learn more and see an example of this error message, please see this help article.