Finally please check an OTR is created in TM?
Secondly check whether following interfaces are configired.
BusinessDocumentFlowTMInformationbyBusinessObjectReferenceQueryResponse_In
BusinessDocumentFlowTMInformationbyBusinessObjectReferenceQueryResponse_Out
Finally check whether the relevant Business functions are active.
LOG_TM_ORD_INT_II: Activate if you want to use delivery splits or update functions, or if you want to view the SAP TM business document flow and SAP TM status information in SAP ERP documents