Title: Deduplication Issue
Last modified: July 23, 2024

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# Deduplication Issue

 *  Resolved [vastdesign](https://wordpress.org/support/users/vastdesign/)
 * (@vastdesign)
 * [1 year, 10 months ago](https://wordpress.org/support/topic/deduplication-issue/)
 * We recently noticed an increased discrepancy between the number of purchases 
   reported on Meta, and the number reported on WooCommerce. After speaking with
   LifeVac’s Meta Representative, we believe the main issue is that Deduplication
   isn’t working properly on our Meta Pixel. And that this is primarily being caused
   by the Purchase Pixel not sending back  Event ID data, as can be seen below in
   this screenshot from Meta’s Event Manager section.
 * Thankfully, LifeVac’s Meta Representative said the solution should be pretty 
   straightforward. This guide from Meta’s go into how to re-setup sending Event
   ID data: [https://developers.facebook.com/docs/marketing-api/conversions-api/deduplicate-pixel-and-server-events/](https://developers.facebook.com/docs/marketing-api/conversions-api/deduplicate-pixel-and-server-events/).
   The Representative did specifically recommend using Event ID and Event Name as
   the safest option for making sure Event Deduplication is properly working.
 * Can this be done with your plugin? We are using Pro version on the site.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fdeduplication-issue%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [PixelYourSite](https://wordpress.org/support/users/pixelyoursite/)
 * (@pixelyoursite)
 * [1 year, 10 months ago](https://wordpress.org/support/topic/deduplication-issue/#post-17907880)
 * All our events have the required event ID. Missing event ID indicates that there
   is something else triggering the events. In fact, when I check your site I can
   see that the same pixel is installed twice: once using our plugin, once by something
   else. Remove that second install. It might be another plugin, like Meta for WordPress.
   I can’t test the purchase events, so I can’t give you a definitive answer.
 * As a general answer, make sure that:
    1. The pixel is not installed multiple times (seems to be the case here).
    2. Purhcase events are not configured outside the plugin (GTM, Meta Events Setup
       Tool).
    3. There is no custom code triggering events (purchase events).
    4. Automatic events without code is not enabled inside Meta Events Manager Settings.
       This is a known source for duplicating purhcase events, since Meta will trigger
       a purhcase event when the WooCommerce place order button is clicked.
 * When testing your events with Pixel Helper or inside Events Manager, you can 
   easily identify our events. They have a large number of parameters, including
   one showing the plugin’s name.
 * As for the Meta’ support recommendation, it doesn’t apply when you use our plugin.
   Their instructions are useful if you manually configure your API integration.

Viewing 1 replies (of 1 total)

The topic ‘Deduplication Issue’ is closed to new replies.

 * ![](https://ps.w.org/pixelyoursite/assets/icon-256x256.jpg?rev=3178123)
 * [PixelYourSite - Your smart PIXEL (TAG) & API Manager](https://wordpress.org/plugins/pixelyoursite/)
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 * 1 reply
 * 2 participants
 * Last reply from: [PixelYourSite](https://wordpress.org/support/users/pixelyoursite/)
 * Last activity: [1 year, 10 months ago](https://wordpress.org/support/topic/deduplication-issue/#post-17907880)
 * Status: resolved