How do I edit the server side validation?
I searched FB to see where the client-side validation is checking for a US/Canada phone format and noticed that I could edit the spry effect and choose Custom for the format of the phone number where I would like it to be 000-000-0000, I even tried making the change there, but of course when re-entering Form Designer or anything else, it's overriden because the format is chosen as US/Canada in FB.
When using Edit Form for the phone number and selecting Phone Number as the type, the Format option shows US/Canada as well as Custom. If I choose Custom nothing happens for me to enter any custom settings. Does the custom format feature not work in FB?