Customer usually finds his transactions in this menu, and there are none there, and none in the Admin Console.
QB 2014 Avalara AvaTax 64.1
Error list contained a locked transaction, locked from a prior period so was uneditable, preventing new additions to the error list. Editing list manually , removing the locked item and saving allowed access to the error list.
Note: The View Pending Transactions list used to be called View Unresolved Sales Tax Errors list in earlier versions of QuickBooks Desktop.