When you are using Scribe to synchronize data with Acoustic Campaign, an OAuth Token is required to access the system from Scribe Online. To connect Scribe Online to Acoustic Campaign get the refresh token from Acoustic Campaign.
If access is already set for the application and Acoustic Campaign user, but you cannot locate the original email with the token, then select the user and click Revoke Account Access. You could proceed to generate a new token by using Add Account Access.