If your Facebook integration is disabled, two possible reasons are that:

• There was an authorization error
• An action was taken in Facebook that disrupted the integration

Regarding authorization, your integration will disable due to a permissions error if you update settings in your Facebook Ads account that cause our authentication token to get revoked (i.e. if you update account password). This can also happen if different users are manipulating audiences and these users don't have full admin permissions.

There are also certain actions you can take in Facebook that will disrupt the integration and cause it to disable. A common example is if you delete an audience in Facebook that we are actively trying to sync with. Our integration will disable if we attempt to sync with a deleted audience because we can’t determine why we can’t sync with the audience; we default to assuming there is a permissions issue and an authentication error is triggered.

If you see that your integration is disabled and you aren't sure why, the best thing to do is simply re-enable the integration in Klaviyo. If your integration repeatedly disables, consider the activity you or others with access to your Ads account might be taking that could disrupt the integration. If the disabled integration is due to something like a changed password in Facebook, you should remove and then re-add the integration in Klaviyo. Even if you’re not sure of the root cause, removing and re-adding the integration can also solve a variety of other permissions-related issues, so it is best to try this step.