I send the same event to Facebooks Event Manager from FB pixel and Conversions API. I have made sure that the event name and eventID are the exact same, and that the server event is sent after the browser event.
Screenshot from FB Events Manager
The events are not deduplicated in Event Manager. I have looked through the documentation but can´t find anything missing.
2
Answers
Events Manager normally displays each event it receives (i.e. both Browser and Server events in this case), but they should be deduplicated in Ads Manager reporting.
May be you don’t use event id in gtm. The problem can be caused by many things. I have to see your gtm setup then i can tell you about it properly. I can solve your problem. For contact with me
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