Debugging is not possible untill 2012, but there are some ‘workarounds’ http://microsoft-ssis.blogspot.com/2011/04/breakpoint-does-not-work-within-ssis.html Dobrym rozwiązaniem jest debuggowanie z wykorzystaniem Trace loga // C# Code public override void Input0_ProcessInputRow(Input0Buffer Row) { System.Diagnostics.Trace.WriteLine(“SomeMessage: ” + Row.YourColumn); } Programik do podglądania logów DebugView v4.81 http://technet.microsoft.com/en-us/sysinternals/bb896647.aspx