The QuickBooks error 3005 can be categorized as “Sync could not be completed”. When you encounter QB error code 3005 you will get a error message saying – “QuickBooks data has been uploaded, but an error occurred while downloading your data from the server”.
Fixing QuickBooks Error 3005
QB error 3005 is occurred due to the problem with Intuit online services or third-party application connections to QuickBooks. The data in your QuickBooks company file was uploaded successfully but an error occurred while downloading the changes made by applications using either Intuit online services or third-party applications.
It is very important to remember if you don’t use any online application that modifies your data, you can ignore this error.
If the problem is Intuit servers may be busy or unavailable at this time, the solution is to retry sync process later. You also need to confirm that you have the latest Intuit Sync Manager update.
If you are subscribed to an Intuit connected service or you have an active subscription for assisted technical QB support, you can call to the toll free number provided to you and discuss your problems and queries with the QB expert professional.
If this solution does not resolve the issue or answer your question, you can read discussions and post messages and questions relating to your issue on the Intuit QuickBooks Community site introduced by Intuit or you can connect with the QuickBooks US support for guidance and error fixation.