Field validation for contact field

[Hema koneti]

Contact number field should be in form of Country Code + Contact number and should not accept any other values than contact numbers. 

can anyone give me scripts or business rules to enforce the mandatory requirement on both the client and server sides. 

[Ramkumar Thanga]

Hi Hema,

Could you please go through the following link.

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0719284

Thanks!
Ram

[brahmandlapally · Accepted solution]

1. Create the following onChange client script:

• • Type: onChange
  • Variable name: the name of the variable to be used
  • Script:

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }

    //Type appropriate comment here, and begin script below
    var pattern = /^[(]?(\d{3})[)]?[-|\s]?(\d{3})[-|\s]?(\d{4})$/;

    if (!pattern.test(newValue)) {
       g_form.setValue('variable_name', '');

  g_form.showFieldMsg('variable_name','error message to display',true);
    }
}