Diagnosis

RFC Error
You want to remotely execute a test or individual functions of a testusing internally a Remote Function Call (RFC) interface. The systemrequires an RFC destination that is processed using transaction SM59.

RFC System Error
This error occurs if a system is terminated on the receiver side.

RFC Communication Error
This error is raised if a problem occurs when establishing theconnection or the communication.

System Response
All RFC errors are registered in the log. In addition, entries arecreated in the system log and dumps are written in case of terminations.

Procedure
In its variable part, the error message entered in the log contains anerror text that is output by the RFC interface.
In many cases, the error text describes the cause of the problem soaccurately that the problem can be solved or avoided.
If the error text is unclear or too general - for example, CONNECTIONCLOSED -, you must find other ways to search for the cause of theproblem.
You can search for information in the source system and target systemusing the following transactions:
SM21 System log display
ST22 Dump analysis
There are only a few RFC errors for which no system log entries or dumpsare created. In these cases, an RFC trace can help to find the cause ofthe error. A corresponding RFC trace option is provided by thetransaction
ST01 System trace