3616497 - Fiori App F3302 "Reconcile GR/IR Accounts": Missing expected notification upon selecting a Purchase Order and assigning a processor

Despite some processor was entered at some Purchase Order item in Fiori App F3302 "Reconcile GR/IR Accounts", the new processor did not get the expected notification

SAP S/4HANA

Missing notification, not received, notifications are not being sent, not sending notifications, not triggered, not notified, workflow customizing, situation handling, RFC destination, SWU3, SWF_CST 011, processor, purchase order, PO, slg1, SIT, SAP_WFRT, SWE2, CL_FINS_GRIR_SITUATION_EVENT, SIT2_NOTIF_PROV, SIT_NOTIF_PROV_EXT,  FIN_GRIR_PROCESSOR_CHANGE, situation template, Situation Type, SIT (Situation Handling), Situation Framework, Situation Handling Framework, WFM, GR/IR Maintenance, SPRO, Notification Provider Settings,  OPU-GW-NOT, Notification Gateway, FIN_GRIRPROCESSORCHANGED, RFC ping for destination 'WORKFLOW_LOCAL_XXX' unsuccessful, Message No. SWF_CST011, BC-BMT-WFM, SAP Business Workflow, SWU3, SM59, RFC Destination, client, events, SM37, jobs suspended, SAP_WORKFLOW_SYSTEM, SAP_WORKFLOW_EVENT, scheduled batch job, logs, SWE2,  GRIR situation events, GRIR_PROCESSING_CHANGE, SWE2, CL_FINS_GRIR_SITUATION_EVENT , ABAP Class, Notification Provider, SWE2, SM30 SWFDVEVTYNOOPT, Maintain Event Type Linkages, Configure Event Type Linkages, SAP Business Events, Fiori App F2947 "Manage Situation Types", situation template FIN_GRIRPROCESSORCHANGED, situation template FIN_GRIRDEVIATIONEXCEEDSTRHSLD, Application Component CA-SIT-WB, Application Component BC-BMT-WFM, "Application Log: Display Logs"  , KBA , FI-FIO-GL-IS , Reporting Apps , Problem