We reduced errors reported by Facebook with the access token upgrade.
1616901244970
Improvement
If you’ve added the Facebook access token to your pixel, you may have noticed some errors reported by Facebook. While they’re generally safe, no one likes errors - so we’ve been working on ways to eliminate and reduce them.

Because we send as much data as possible to Facebook, even when there’s not much to report (like an organic visit), the following error may show up for a small percentage of your audience. This is safe to ignore, but if it’s possible to prevent it, I’m confident our team will figure it out.

