Assume that you use the Fuzzy Lookup transformation in SQL Server Integration Services (SSIS). When you update or delete a reference table that the transformation uses, you receive an error message that resembles the following:
Msg 6549, Level 16, State 1, Procedure sp_FuzzyLookupTableMaintenanceInvoke, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'sp_FuzzyLookupTableMaintenanceInvoke':
System.Data.SqlClient.SqlException: User defined routine, trigger or aggregate tried to rollback a transaction that is not started in that CLR level. An exception will be thrown to prevent execution of rest of the user defined routine, trigger or aggregate.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.