After updating XI 3.0 from SP 9 to SP19 the idoc LOIPRO doesnt reach it destination but the other idocs do. In sending system (ERP 2004) the idoc reveals status 03 but checking behind the transaction SM58 the error message for the LOIPRO idoc is following: No Service for System_binding_error. The receiving system (XI 3.0) LOIPRO- idoc never reaches. RFC- connection works fine after testing but could there be other problems that i have missed? What could be the problem? Should there be some logical system in place of System_binding_error?