Title: CAPI problem
Last modified: February 14, 2021

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# CAPI problem

 *  Resolved [bopkul88](https://wordpress.org/support/users/bopkul88/)
 * (@bopkul88)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/capi-problem/)
 * Hi!
 * I see more problems in Facebook Event Manager!
 * The same event ID was received by many event instances.
 * You are sending the same event ID to multiple instances of your AddToCart events.
   Event IDs are unique identifiers that can be used to deduplicate the same events
   from your pixel and the Conversions API so that they are not counted twice. In
   order for Facebook to accurately count your events, each unique event instance
   needs its own unique event ID.
    This can cause problems measuring your events
   and assigning your ad campaigns.
 * Solving the problem:
 * Update the “event_id” parameter for AddToCart events to send a unique event ID
   for each unique event history from both your pixel and the Conversions API. You
   can do this at the source code of the pixel in that location. For the Conversions
   API, you can do this with Graph API Explorer or your server terminal.
 * Can you help me with this?
    Thank you
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcapi-problem%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)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/capi-problem/#post-14047123)
 * Please check this page: [https://www.pixelyoursite.com/facebook-conversion-api-capi](https://www.pixelyoursite.com/facebook-conversion-api-capi)
 * You’ll see how to test your CAPI events, and there are some basic things about
   the most common issues, yours included.
    -  This reply was modified 5 years, 1 month ago by [PixelYourSite](https://wordpress.org/support/users/pixelyoursite/).

Viewing 1 replies (of 1 total)

The topic ‘CAPI problem’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [PixelYourSite](https://wordpress.org/support/users/pixelyoursite/)
 * Last activity: [5 years, 1 month ago](https://wordpress.org/support/topic/capi-problem/#post-14047123)
 * Status: resolved