A customer has recently had an issue with multiple leads being generated from a single form submission - the cause of the issue was unable to be identified.

It would be great to have a mechanism in place on the Marketing Forms to prevent the user clicking multiple times on the submit button. Since the form validation is handled “behind the scenes” (that is, it’s baked in to the operation of the form), it’s hard for us to add anything to the form to prevent multiple clicks. We could use javascript to disable the button on click, but if the form hasn’t been correctly completed and the form validation prevents submission, we then have a disabled submit button and the user cannot submit the form after addressing the validation failures.