Title: missing some deduplication parameters
Last modified: February 25, 2021

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# missing some deduplication parameters

 *  [leestephens7](https://wordpress.org/support/users/leestephens7/)
 * (@leestephens7)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/missing-some-deduplication-parameters/)
 * On all my events I am getting this error message
 * Example message “ViewContent Event missing some deduplication parameters”
 * This is the same for initiate checkout, add to cart, purchase, search and viewcontent
 * I have pixel caffeine installed on my wordpress site

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Thread Starter [leestephens7](https://wordpress.org/support/users/leestephens7/)
 * (@leestephens7)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/missing-some-deduplication-parameters/#post-14100976)
 * Update they now have changed.
 * View content:
    Same event ID received for many event instances Missing ViewContent
   user data parameters
 * Add To Cart:
    Missing AddToCart user data parameters
 * Initiate Checkout:
    Missing InitiateCheckout user data parameters
 * Advanced Events:
    Missing AdvancedEvents user data parameters
 *  [clickingclients](https://wordpress.org/support/users/clickingclients/)
 * (@clickingclients)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/missing-some-deduplication-parameters/#post-14114125)
 * I’m getting the same.
 * FB events manager reporting this:
 * >  Same event ID received for many event instances
   >  You’re sending the same event
   > ID for many instances of your AdvancedEvents events. Event IDs are unique identifiers
   > that are used to deduplicate identical events received from your pixel and 
   > the Conversions API so they’re not counted twice. To ensure that Facebook is
   > accurately counting your events, each unique event instance needs its own unique
   > event ID. This may cause issues with the measurement of your events and the
   > attribution of your ad campaigns.
 * It says the solution is:
    **Update the event_id parameter for your AdvancedEvents
   events so that each unique event instance is sending a unique event ID from both
   your pixel and through the Conversions API. For pixel, you can do this on your
   website’s source code. For Conversions API, you can do this in Graph API Explorer
   or on your server terminal.**
 * I have Server Side Tracking ON – would this create the problem?
 * Shouldn’t this plugin take care of it?
    -  This reply was modified 5 years, 3 months ago by [clickingclients](https://wordpress.org/support/users/clickingclients/).
 *  Plugin Author [adespresso](https://wordpress.org/support/users/adespresso/)
 * (@adespresso)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/missing-some-deduplication-parameters/#post-14189523)
 * 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.
 *  [clickingclients](https://wordpress.org/support/users/clickingclients/)
 * (@clickingclients)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/missing-some-deduplication-parameters/#post-14226086)
 * [@adespresso](https://wordpress.org/support/users/adespresso/) Yes – using caching
   plugins.
 * SG Optimizer and Cloudflare.
 * Here are the errors I’m getting flagged:
 *     ```
       InitiateCheckout Event missing some deduplication parameters
       ... without an event_id parameter cannot be deduplicated.
   
       Purchase Event missing some deduplication parameters
       ... without an event_id parameter cannot be deduplicated.
   
       Same event ID received for many event instances
       You're sending the same event ID for many instances of your AddToCart events....
   
       Same event ID received for many event instances
       You're sending the same event ID for many instances of your AdvancedEvents events. 
       ​
       Same event ID received for many event instances
       You're sending the same event ID for many instances of your ViewContent events.
   
       Missing AdvancedEvents user data parameters
       Your server isn't sending any of the necessary user_data parameter keys...
   
       Missing AddToCart user data parameters
       Your server isn't sending any of the necessary user_data parameter keys... 
   
       Missing InitiateCheckout user data parameters
       Your server isn't sending any of the necessary user_data parameter keys... 
   
       Missing ViewContent user data parameters ....
       ```
   
    -  This reply was modified 5 years, 2 months ago by [clickingclients](https://wordpress.org/support/users/clickingclients/).

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘missing some deduplication parameters’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/pixel-caffeine_e2ce0c.svg)
 * [Pixel Caffeine](https://wordpress.org/plugins/pixel-caffeine/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/pixel-caffeine/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/pixel-caffeine/)
 * [Active Topics](https://wordpress.org/support/plugin/pixel-caffeine/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/pixel-caffeine/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/pixel-caffeine/reviews/)

 * 4 replies
 * 3 participants
 * Last reply from: [clickingclients](https://wordpress.org/support/users/clickingclients/)
 * Last activity: [5 years, 2 months ago](https://wordpress.org/support/topic/missing-some-deduplication-parameters/#post-14226086)
 * Status: not resolved