Couple troubleshooting options to start with and apologies if you've already tested these but sometimes the most basic elements are what get missed: Ensure you actually have form submissions on the form Check a lead that you know has filled out the form and look at the 'Filled Out Form' activity and ensure that the 'ContentName' field is being submitted on the form correctly Ensure in the setup of the smart campaign that the settings allow the campaign to be triggered every time and there is not a limit on it Make sure the trigger is referencing the right form and not a similarly named form Make sure the filter is 'contains' and not 'is' Try it without the filter at all - I've seen Marketo's trigger mechanism get out of sync and cause triggers to fail. It's rare but it is possible. ... View more