This message can also show up as, "QuickBooks Reconnect error: OAuth Token rejected."
This happens if your credentials have changed. You can correct this by following Settings > Policies > [Policy Name] > Connections > Sync Now. In the pop-up window, click Reconnect and enter your current QuickBooks Online credentials.
If you are connecting with new credentials, you will receive this message:
If you select to Connect anyway, you will need to reconfigure your settings, re-select categories and tags you want enabled. We recommend taking a screenshot of how you are configured beforehand, to reset the connection with how you had it previously.
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