Hello, I am getting this error on my event manager. Does anyone know how to fix this?
I have the same issue for all my events…
I just got reply from FB support team.
"Thank you for reaching out to let us know about the problem you are having with Pixel.
Please explain the client that this error is about Deduplication, If you connect website activity using both the Pixel and Conversions API, we may receive the same events from the browser and the server. If we know that the events are the same and therefore redundant, we can keep one and discard the rest. Here , I can see that in the client account all the events are shared between browser and server.
About the error, Client is sending the parameters for PageView event and View content event from the server, but not sending the same parameter for these events from the pixel code. In order to solve this issues client or the clients web developer should add 2 event parameters that help us determine if the events are the same: the event name (for example, Page view or View content) and the event ID.This helps the pixel for deduplication issue."
I am facing the same issue as well.

