Form action onSubmit

<form action="https://example.com/form.php" method="POST"

      onsubmit="om{{id}}.Listeners.convert();">

  <label for="om-first-name">First Name</label>

  <input id="om-first-name" type="text" name="first_name">

  <label for="om-email">Email Address</label>

  <input id="om-email" type="email" name="email" required>

  <input type="submit" value="Submit Now!">

</form>