Agents are currently experiencing issues in logging in and playing with Facebook. If possible, log into Ingress with your Google or Apple account until Niantic fixes the bug. We will keep you updated and let you know as soon as there is an update.

#Facebook
@IUENG

Niantic has given a small update: Facebook has disabled the "log in with Facebook" method for Ingress, and Niantic is in contact with them to fix this.

In the meantime, you can log in with your Google or Apple account. Should you not have one connected, here's what you can do:

- Open another Niantic game (Pokemon Go, Harry Potter).
- Log in with your Facebook account
- Connect your Google or Apple account to your account
- Log in to Ingress with your Google or Apple account.

#Facebook
@IUENG

Another important update: Facebook has blocked login to Ingress via their platform. According to Facebook, this is not temporary. Niantic is trying to challenge this decision.

If you only have one Facebook account connected to your Ingress account, follow the steps in our last post. It seems like Facebook login may take longer to be reactivated.

Source: https://community.ingress.com/en/discussion/comment/156026/#Comment_156026

#Facebook
@IUENG

Agents report that logging in with Facebook has been enabled back. You should be able to use Facebook for Ingress without any problems. No official confirmation from Niantic has been posted yet. Niantic confirmed at 16:02 UTC.

#facebook
@IUENG