Hi @nicopengin
Thanks for writing in with your question! We’ve had a few merchants mention this so far and had raised a support request with the Facebook team that is still ongoing.
Through all the tests and logs that we looked into for these other merchants, we always saw that the ip address and user agent parameters were sent. So we don’t yet know why this message is appearing. The initial response from the Facebook team has been that this should not occur that often, and that they think it could be related to customers using ad-blockers. They advise to clear the issue by clicking the Resolve button in events manager and see if it continues to appear going forward.
We’ve asked the team if we could see some logging from their side to try and match that with our plugin logs. Unfortunately, due to privacy concerns, it’s not possible for Facebook to share that with us.
In which case, if you’d like to raise this further, I would recommend raising a query with them directly at: https://www.facebook.com/help/contact/552096935652452
Please make sure to include your Pixel ID, a screenshot of the error, and mention that the WooCommerce plugin uses the Server to Server API for recording these events.
I’m sorry we can’t be more help on this occasion. If I hear anything further from their team on being able to narrow down the root cause, I’ll circle around and let you know!
Could you let me know how you get on if you do decide to contact them directly?
