There is an error in the log similar to this:
This error comes directly from the Intuit Software Development Kit (SDK) and indicates that it does not have permissions from the requested QuickBooks file to communicate with it.
There are two possible causes for this error:
1. The QB file has not assigned permissions for allowing QQube to connect - or they have been removed/revoked.
This can happen if the users and permissions are not created and assigned per our create connection users guide, but more often then not, it happens because someone replaced the existing QB file, with one that never had the permissions assigned.
2. You have more than one QQube Synchronizer running on the server or workstation.
Cause 1. Ensure that QuickBooks contains the following entry under Integrated Applications:
If it doesn't show like this, then you may need to re-establish the permissions between QuickBooks and QQube, by removing the company from QQube, and then re-adding the company in the same step, per the steps in this guide: Add a QuickBooks File to QQube
Cause 2. The synch takes place under the user where QQube is installed. However, regular users, may erroneously attempt to run the synchronizer under their own user name (or erroneously install an update under their own user name causing the synch to auto kick off), and cause errors like this to occur. A regular user is never a synch user. If you are unfamiliar with the proper implementation, please review our installation guides.
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