Hello,
we have a problem with Facebook deduplication. We configured the settings according to the instructions. The events arrive cleanly in the Facebook events test, but they aren’t deduplicated there. I’ve read a lot about this event test displaying errors.
But our statistician also shows us a very poor rate for page views.
I hope someone can help me. Thank you very much.
Does the event id match from client side to serverside on the specific events, when you look in preview
This may indicate that your browser events are being triggered not only from your GTM, but also from other places where event_id is not added to the event.
This could be a Meta code snippet in the website code / the work of a plugin or integration / custom events in the Meta event setup tool.
Server events can also be sent via other services such as Zapier or something else.