Solution : https://service.sap.com/sap/support/notes/763982 (SAP Service marketplace login required)
Key words :
activate synchronous processing depending, runtime error occurs, rsesynmestyp report attached, process immediately reason, sending system expects, business application requires, sending system, synchronous processing, error message, local report
Related Notes :
555229 | IDocs hang in status 64 for tRFC with immediate processing |