FB is now showing deduplication

Facebook Conversion API
1

Hi all,
We recently set up the Facebook Conversion API via the Google Tag Manager.
Our shop is a single-page application (do not know if this information matters). As mentioned in the documentation, we have set up a hybrid setup (FB Client tags + FB Server tags). We use the stape Data Tag to push information to the sGTM container. Everything works, but the Event Manager does not show the deduplication. Both tags show up as “processed” - but both events contain the unique event ID, so I am not sure if deduplication worked now or not.

Here is the setup:

FB Client AddtoCart tag + Stape Data Tag
https://imgur.com/a/vl2tGWa

FB Server AddToCart tag + sGTM DebugView + FB Event Manager Results
https://imgur.com/a/wUB7qed

As you can see, events show up in the sGTM debug view, the FB sGTM tag is fired. Client and Server FB have the same unique event ID, but the Event Manager does not show the deduplication.

What am I doing wrong here?

2

This is completely normal. If you send events both from web and server, then the Events Manager will receive both events. What you see is the confirmation that both events arrived successfully.

Since the unique event ID’s are the same, the deduplication happens for those events on Facebook side. You can click View Details under any type of event and select the Events Deduplication tab to check if it’s working properly.

3

Hi Nick, thanks a lot. Where do I find this tab in the Facebook Event Manager?