we have been testing out Matomo for a little while now.
While we have no problem tracking users from Google Ads & other campaign sources, we seem to only be able to track ~60% of the users coming from Facebook. We have checked around quite a bit (it seems to be not Device/Browser/Extensions/…) but seem to be not be able to reproduce it ourselves. This is the case across multiple domains.
Example: While we have 1000 Link-Clicks coming from Facebook to our Website, we can only track ~600. We use UTM Parameters and Matomo’s Campaign Reporting Plugin.
Is someone having similiar experiences or has ideas what this could be? While some people will perhaps jump off, 40% seem very high and our page loading speed is good.
Thank you already for any input.