tRFC calls that transfer IDocs use the function module IDOC_INBOUND_ASYNCHRONOUS on the receiver side.
If an IDoc in the sending SAP system has been passed to tRFC (IDoc status "03"), but has not yet arrived at the receiving system, the tRFC call has not yet been executed.
To check the status of the tRFC calls, choose
and specify any additional selection criteria.The program RSARFCEX restarts unsuccessful tRFC calls.
You cannot choose the option is being executed in background processing.