Title: Deduplicated Error
Last modified: February 17, 2021

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# Deduplicated Error

 *  [leestephens7](https://wordpress.org/support/users/leestephens7/)
 * (@leestephens7)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/deduplicated-error/)
 * Hi,
 * I recently installed Pixel Caffeine onto my WordPress site to track conversions
   by facebook pixel and conversions api
 * I have everything installed with my Pixel ID and Access Token but I have now 
   got errors for the events
 * Here is an example error:
    “You’re sending AddToCart events through both your
   pixel and the Conversions API, but they’re not being deduplicated properly because
   not enough of these events are receiving an event_id parameter. Event instances
   sent without an event_id parameter cannot be deduplicated. This may cause issues
   with the measurement of your events as well as the attribution and delivery optimisation
   of any ad campaigns that are optimising for this event”
 * I also have an error for advancedevents which says:
    “Your server isn’t sending
   any of the necessary user_data parameter keys for your AdvancedEvents events.
   Without at least one of the below user_data parameter key for each AdvancedEvents
   event sent from your server, you won’t be able to use your AdvancedEvents events
   for attribution or optimisation. This may cause issues with the attribution and
   delivery optimisation of your ad campaigns.”
 * Can you please advise a fix?

Viewing 1 replies (of 1 total)

 *  Plugin Author [adespresso](https://wordpress.org/support/users/adespresso/)
 * (@adespresso)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/deduplicated-error/#post-14189396)
 * Hi,
 * are you using some caching plugins? There are known issues with server-side events
   that we are fixing with the release of the new version, most probably within 
   the next 24/48hours.

Viewing 1 replies (of 1 total)

The topic ‘Deduplicated Error’ is closed to new replies.

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 * [Pixel Caffeine](https://wordpress.org/plugins/pixel-caffeine/)
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 * 1 reply
 * 2 participants
 * Last reply from: [adespresso](https://wordpress.org/support/users/adespresso/)
 * Last activity: [5 years, 2 months ago](https://wordpress.org/support/topic/deduplicated-error/#post-14189396)
 * Status: not resolved