We set up a tag in Google Tag Manager for Facebook conversion tracking, triggered by submission of a specific form.
Now we are seeing many conversions in the Facebook Ads console in times when we are quite positive not to have had any submission. Facebook tells us that the events come with this Redirect URL:
These conversions come in groups of three (I mean, three such events at the same timestamps).
Has anyone experienced an issue like this? Any idea of a possible cause?