Summary:
This is a limitation in QuickBooks (QB), an Item Name cannot be more than 31 characters. If an Item Name in Web TimeSheet to be transferred to QuickBooks is more than 31 characters long, QBI truncates the long Item name up to first 31 characters only.

Warning messages will be seen for such long Item Names during Job/Item transfers using QuickBooks Integration module as below –
The maximum number of characters allowed for ItemNameNumber in QB is 31. So the ItemNameNumber is truncated.

QB users/administrators should consult their CPA to ensure that their Item Names are not longer than 31 Characters in order to accommodate meaningful Item names for successful Item transfers.