What should I do if posting to Facebook has stopped working?

Facebook can prevent Aiir from being able to post message to Facebook for a number of reasons.

This can become apparent in Aiir if you see an error like this:

Error validating access token: The session has been invalidated because the user changed their password or Facebook has changed the session for security reasons.

This issue can happen because:

The Facebook account holder who originally added the page to Aiir has changed their Facebook password.
...or they are no longer an administrator of the Facebook page.
...or they have added the Facebook page again in Aiir but for a different organisation.

We recommend asking the user to remove their Facebook page and/or account from Aiir, and re-add it.

Go to Aiir's main menu, select Admin, then select Add or remove Social Accounts. You'll need to be an administrator to reach this.

If removing the Facebook page and re-adding it doesn't solve the problem, try fully removing Aiir from the Facebook account first.

To do this, log in to the Facebook account and go to the Business integrations page in Settings. If you see Aiir there, remove it. Then return to Aiir and re-add the Facebook page.