Title: Deduplication api problem facebook Last modified: May 19, 2021 --- # 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/) * 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 6 replies - 1 through 6 (of 6 total) * [B C. a11n](https://wordpress.org/support/users/battouly/) * (@battouly) * [4 years, 12 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14460229) * Hey [@mansitkd](https://wordpress.org/support/users/mansitkd/), * I see a “How to solve the problem” section in your request. Does that mean you are submitting a request and a reply? * Do you still need help with this? * Thread Starter [mansitkd](https://wordpress.org/support/users/mansitkd/) * (@mansitkd) * [4 years, 12 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14460232) * nono, i need help, first time on forum * [Cara](https://wordpress.org/support/users/dcka/) * (@dcka) * [4 years, 12 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14461116) * Hi, [@mansitkd](https://wordpress.org/support/users/mansitkd/)! * The error you’re seeing can be due to the pixel tracking code being added to your site more than once, either in your site’s header.php or another plugin. I do note that you told us this: * > 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. * Can you please clarify what you mean by “the pixel is been installed from facebook platform”? Before using the Facebook for WooCommerce plugin, did you already have the pixel installed on your site? * Another thing you can look at is if you have a caching plugin. You can try disabling that and seeing if it will help. * If you’re certain you only have the code added once, that is, through our Facebook for WooCommerce extension, you can mark the issue as resolved in the Events Manager. And as it says in the message you copied, Facebook will check for the issue again after 3 days. * Thread Starter [mansitkd](https://wordpress.org/support/users/mansitkd/) * (@mansitkd) * [4 years, 11 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14463790) * > Can you please clarify what you mean by “the pixel is been installed from facebook > platform”? Before using the Facebook for WooCommerce plugin, did you already > have the pixel installed on your site? * i used facebook business, event manger, add event. Seems i linked api conversions of woocommerce and wordpress more plugin facebook for woocommerce. * do u know how to desync api? * [B C. a11n](https://wordpress.org/support/users/battouly/) * (@battouly) * [4 years, 11 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14464643) * Hi [@mansitkd](https://wordpress.org/support/users/mansitkd/), * > do u know how to desync api? * Are you looking for a way to disconnect your WooCommerce store from your Facebook shop? * It will be great if you could share your current System Status Report. You can get it by navigating to the `WooCommerce / Status` section of your site. Once there, click on the `Get system report` button and then copy it by clicking on the `Copy for support` button. Then paste it here in a comment. * As for this section: * > 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. * To clarify the issue further, I’d recommend taking a look at the forum thread linked below, as it has a detailed reply from Will regarding some of the troubleshooting steps to verify what is occurring with the event_id parameter on a site: * [https://wordpress.org/support/topic/addtocart-and-purchase-duplicate-events-in-api-and-also-in-pixel/](https://wordpress.org/support/topic/addtocart-and-purchase-duplicate-events-in-api-and-also-in-pixel/) * [Hannah S.L.](https://wordpress.org/support/users/fernashes/) * (@fernashes) * Automattic Happiness Engineer * [4 years, 11 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14501320) * 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. Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Deduplication api problem facebook’ is closed to new replies. * ![](https://ps.w.org/facebook-for-woocommerce/assets/icon.svg?rev=3469606) * [Meta for WooCommerce](https://wordpress.org/plugins/facebook-for-woocommerce/) * [Support Threads](https://wordpress.org/support/plugin/facebook-for-woocommerce/) * [Active Topics](https://wordpress.org/support/plugin/facebook-for-woocommerce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/facebook-for-woocommerce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/facebook-for-woocommerce/reviews/) ## Tags * [api](https://wordpress.org/support/topic-tag/api/) * 6 replies * 4 participants * Last reply from: [Hannah S.L.](https://wordpress.org/support/users/fernashes/) * Last activity: [4 years, 11 months ago](https://wordpress.org/support/topic/deduplication-api-problem-facebook/#post-14501320) * Status: resolved