Title: Facebook Data Sources Diagnostics Error
Last modified: September 3, 2020

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# Facebook Data Sources Diagnostics Error

 *  Resolved [madgeshatbox](https://wordpress.org/support/users/madgeshatbox/)
 * (@madgeshatbox)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/facebook-data-sources-diagnostics-error/)
 * I’m getting a diagnostic error in my facebook events manager. Is this something
   you can help me with solving?
 * Server Sending Invalid Match Key Parameters for AddToCart Event
    Last detected:
   Sep 1, 2020, 3:00 AM 2 instances
 * ISSUE
    Your server is sending an invalid ip_address, user_agent parameters value
   for your AddToCart event. This may be because there was an error in the parameter
   value. This may cause issues with the attribution and delivery optimization of
   ad campaigns that are using this event.
 * SOLUTION
    Check that you’re sending valid and unique values for the ip_address,
   user_agent parameters for your AddToCart event and that the data is normalized
   correctly.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffacebook-data-sources-diagnostics-error%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, 9 months ago](https://wordpress.org/support/topic/facebook-data-sources-diagnostics-error/#post-13354141)
 * Hi,
 * The error means that for two AddToCart events sent server-side (Conversion API),
   some of the matching data was missing or was incorrect. It can be something speciffic
   to a particular user and not a global problem. However, if this keeps happening,
   please let us know.
 * IMPORTANT: Support for the paid version of the plugin is available on our website
   directly. Since the AddToCart works server-side on the paid version only (for
   now), I guess you have a paid license. So please contact us on the website if
   you notice similar issues.

Viewing 1 replies (of 1 total)

The topic ‘Facebook Data Sources Diagnostics Error’ 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, 9 months ago](https://wordpress.org/support/topic/facebook-data-sources-diagnostics-error/#post-13354141)
 * Status: resolved