Title: Deduplication api problem facebook
Last modified: May 19, 2021

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# Deduplication api problem facebook

 *  Resolved [mansitkd](https://wordpress.org/support/users/mansitkd/)
 * (@mansitkd)
 * [4 years, 12 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook-2/)
 * I have woocommerce and the pixel is been installed from facebook platform, no
   php or html code installed on website excpet from woocommerce for facebook and
   woocommerce plugins.
 * in 1 months i have tried everything from facebook, forcing api stuff, installing
   pixel with code etc… but i m not able to solve this problem.
    I contact facebook
   support and they told me that the problem is related with woo plugins. This is
   the error. Can you help me please, i m going crazy, thx T.T
 * AddToCart Event Not Deduplicated
    You’re sending AddToCart events across the 
   pixel and server connection, but they’re not deduplicated since you didn’t add
   an event_id parameter for this event. Without an event_id for this event, your
   AddToCart events will be counted twice since they cannot be deduplicated. This
   may cause problems with the attribution of your ad campaigns.
 * `How to solve the problem
    To solve the problem you will need to use the solution
   below. Once you have resolved the issue in your website’s code, you can mark 
   it as resolved. This will move the problem to the Previously Detected section.
   If the problem is detected again after 3 days, it will be moved to the In Progress
   section. Add an event_id parameter to your AddToCart event in your server payload.
   You can use the Payload Helper tool on the Facebook for Developers website to
   confirm that your payload has been configured correctly.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [Gabriel – a11n](https://wordpress.org/support/users/gabrielfuentes/)
 * (@gabrielfuentes)
 * [4 years, 12 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook-2/#post-14457925)
 * Hi there 👋
 * It sounds like this issue is directly related to the **Facebook for WooCommerce**
   plugin.
 * So in this case, I would like to recommend you to reach out to us regarding this
   specific issue on the following support forum:
 * [https://wordpress.org/support/plugin/facebook-for-woocommerce/](https://wordpress.org/support/plugin/facebook-for-woocommerce/)
 * Please kindly note that this particular forum is for questions that are directly
   related to the features and functionality of the free WooCommerce plugin.
 * Cheers 🙂
 *  Plugin Support [Gabriel – a11n](https://wordpress.org/support/users/gabrielfuentes/)
 * (@gabrielfuentes)
 * [4 years, 11 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook-2/#post-14485414)
 * We haven’t heard back from you in a while, so I’m going to mark this as resolved–
   if you have any further questions, you can start a new thread.
 *  [avelazsi](https://wordpress.org/support/users/avelazsi/)
 * (@avelazsi)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook-2/#post-14797136)
 * Esto significa que falta el parametro event_id a tu evento AddtoCart que corresponde
   al repositorio de eventos de tu API (no al de tu pixel) por lo que deberas generar
   una carga util en el Payload para despues enviarla mediante el Explorador de 
   la API Graph al servidor y con esto completar los parametros de tu evento AddtoCart:),

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Deduplication api problem facebook’ is closed to new replies.

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 * 3 replies
 * 3 participants
 * Last reply from: [avelazsi](https://wordpress.org/support/users/avelazsi/)
 * Last activity: [4 years, 8 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook-2/#post-14797136)
 * Status: resolved