Please refer to the following link to configure the QuickBooks connector in DBSync.
Link: http://help.mydbsync.com/docs/display/dbsync/QuickBooks+Desktop+Connector
Or
Please follow the below steps to configure the QuickBooks connector in DBSync.
1. Login to DBSync using the link https://app03.mydbsync.com/appcenter/login
2. Click on Development studio.
3. Click edit next to the project ‘SalesforceQuickBooksBiDirectional_v2 ‘.
4. Click on Connectors tab(Left side of the window).
5. Click on QuickBooks and paste the QuickBooks company file path (To find the QuickBooks file path, launch QuickBooks and press ‘F2’ key).
6. Download the web connector and save it.
7. Open the downloaded ‘.QWC’ file in the QuickBooks web connector and enter the DBSync password in the Password section.
8. Run the sync.
Let us know once it is done.
Please reach out to us for any assistance.