What is the "Server Sending Invalid Match Key Parameters" alert?

After enabling the Conversions API, if you see this kind of warning in your Business Manager:

 

 

This is due to the use by some of your customers of a cookie blocker like "adblock". Some data (IP, etc...) are then incorrectly formatted according to Facebook guidelines. These are only warnings and can be ignored.

We are currently preparing a version of the module that will contain an option to not send the parameters that cause this type of problem. This will allow you to stop having these warnings.

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