Hello,

The code you listed above needs to go into your Custom Code block, that is in the advanced tab of your form's root element (the form title). Click on the form's title in the formbuilder, then go to 'advanced', custom code block and paste in:

<script type="text/javascript">
var fieldId = "enter here the id of the first field";
var confirmFieldId = "enter here the id of the confirmation field";
wFORMS.behaviors.validation.messages['isIdentical'] = "The values don't match.";

// leave the rest as is.
wFORMS.behaviors.validation.rules['isIdentical'] = { selector: "#"+fieldId,
check: function(element) {
var c=document.getElementById(confirmFieldId);
if(element.value!=c.value) {
return false;
}
return true;
}};
</script>

Then go back to this code and replace the strings:
"enter here the id of the first field"
and
"enter here the id of the confirmation field"
with the values for the fields found in your html source code, which might be something like:
"tfa_Email"
"tfa_ConfirmYourEma"

Happy to help further,
FA Support.

Hello Jordan,

You need to use the name parameter / id ( tfa_XXXXXX) for the fields you wish to confirm, not the calculation variables.

So, for yours if you look in the html source, or at:
https://app.formassembly.com/forms/prefill_info/236648

you should see that your ids are tfa_260 and tfa_460 I believe.

Drew