CALL FUNCTION - RFC 
INDEX @@CALL FUNCTION - RFC@@ABAP Statement@@
Syntax Forms
 
Synchronous RFC 
 
1. CALL FUNCTION func DESTINATION dest 
                     parameter_list. 
 
Asynchronous RFC 
 
2. CALL FUNCTION func STARTING NEW TASK task 
                [DESTINATION {dest|{IN GROUP {group|DEFAULT}}}] 
                parameter_list 
                [{PERFORMING subr}|{CALLING meth} ON END OF TASK]. 
 
Transactional RFC 
 
3. CALL FUNCTION func IN BACKGROUND TASK 
                     [DESTINATION dest] 
                     parameter_list 
                     [AS SEPARATE UNIT]. 
 
4. CALL FUNCTION func IN BACKGROUND UNIT 
                     parameter_list. 
Effect
A function module or a function is called using the RFC interface. 
Non-Catchable Exceptions 
- 
Cause: The called function module has not been released for RFC. 
Runtime Error: CALL_BACK_ENTRY_NOT_FOUND
 
- 
Cause: Destination type is not allowed. 
Runtime Error: CALL_FUNCTION_DEST_TYPE
 
- 
Cause: The current function was not called remotely. 
Runtime Error: CALL_FUNCTION_NO_SENDER
 
- 
Cause: Missing communication type (I for internal connection, 3 for
ABAP system) when calling an asynchronous RFC 
Runtime Error: CALL_FUNCTION_DESTINATION_NO_T
 
- 
Cause: The destination entered does not exist. 
Runtime Error: CALL_FUNCTION_NO_DEST
 
- 
Cause: Maximum length of destination options exceeded. 
Runtime Error: CALL_FUNCTION_OPTION_OVERFLOW
 
- 
Cause: The destination entered (in load distribution mode) does not exist. 
Runtime Error: CALL_FUNCTION_NO_LB_DEST
 
- 
Cause: Data received for unknown CPI-C connection. 
Runtime Error: CALL_FUNCTION_NO_RECEIVER
 
- 
Cause: The function module you tried to call is flagged as one that cannot be called remotely. 
Runtime Error: CALL_FUNCTION_NOT_REMOTE
 
- 
Cause: An error occurred when calling the function remotely. This error is logged in the calling system. 
Runtime Error: CALL_FUNCTION_REMOTE_ERROR
 
- 
Cause: The logon data for the user is not complete. 
Runtime Error: CALL_FUNCTION_SIGNON_INCOMPL
 
- 
Cause: The attempt to log on in the form of an internal call to a target system is not valid. 
Runtime Error: CALL_FUNCTION_SIGNON_INTRUDER
 
- 
Cause: RFC from an external program without a valid user ID. 
Runtime Error: CALL_FUNCTION_SIGNON_INVALID
 
- 
Cause: The user tried to log onto the target system without a valid user ID. 
Runtime Error: CALL_FUNCTION_SIGNON_REJECTED 
The error code signifies the following: 
1) Incorrect password or invalid user ID 
2) User locked 
3) Too many logon attempts 
5) Error in authorization buffer (internal error) 
6) No external user check 
7) Invalid user type 
8) User's validity interval has been exceeded
 
- 
Cause: No authorization for logon as a trusted system. 
Runtime Error: CALL_FUNCTION_SINGLE_LOGIN_REJ 
The error code signifies the following: 
0) Incorrect logon data with a valid security key. 
1) Either the calling system is not a trusted
trusted system, or the security key is invalid. 
2)
Either the user has no RFC authorization (authorization object S_RFCACL)
or else someone tried to log on using a protected user, 'DDIC' or 'SAP*'. 
3) The timestamp for the logon data is invalid.
 
- 
Cause: An RFC without a valid user ID is only allowed for a system
function module. The meaning of the error code is the same as for CALL_FUNCTION_SINGLE_LOGIN_REJ. 
Runtime Error: CALL_FUNCTION_SYSCALL_ONLY
 
- 
Cause: Data error (internal table info) when calling a function remotely
 
Runtime Error: CALL_FUNCTION_TABINFO
- 
Cause: No memory available for the table to be imported 
Runtime Error: CALL_FUNCTION_TABLE_NO_MEMORY
 
Cause: Only applies to asynchronous RFC: Task name is already being used 
Runtime Error: CALL_FUNCTION_TASK_IN_USE
Cause: Only applies to asynchronous RFC: The specified task is already open 
Runtime Error: CALL_FUNCTION_TASK_YET_OPEN
- 
Cause: No trusted authorization for the RFC call and trusted system 
Runtime Error: CALL_RPERF_SLOGIN_AUTH_ERROR
 
- 
Cause: No valid trusted entry for the calling system 
Runtime Error: CALL_RPERF_SLOGIN_READ_ERROR
 
- 
Cause: No RFC authorization for the user 
Runtime Error: RFC_NO_AUTHORITY
 
- 
Cause: Destination "BACK" is not allowed in the current program 
Runtime Error: CALL_FUNCTION_BACK_REJECTED 
Runtime Error: CALL_XMLRFC_BACK_REJECTED
 
- 
Cause: Error when evaluating the RFC destination 
Runtime Error: CALL_FUNCTION_DEST_SCAN
 
- 
Cause: Error when evaluating the RFC destination 
Runtime Error: CALL_FUNCTION_DEST_SCAN
 
- 
Cause: Type conflict when passing a table 
Runtime Error: CALL_FUNCTION_CONFLICT_TAB_TYP
 
- 
Cause: No memory available for creating a local internal table 
Runtime Error: CALL_FUNCTION_CREATE_TABLE
 
- 
Cause: Type conflict when passing a structure 
Runtime
Error: CALL_FUNCTION_UC_STRUCT 
Runtime Error: CALL_FUNCTION_DEEP_MISMATCH
 
- 
Cause: Invalid data type when passing parameters 
Runtime
Error: CALL_FUNCTION_WRONG_VALUE_LENG 
Runtime Error: CALL_FUNCTION_PARAMETER_TYPE 
Runtime Error: CALL_FUNCTION_ILLEGAL_DATA_TYP
 
- 
Cause: Type conflict when passing a field of type WCHAR. 
Runtime Error: CALL_FUNCTION_WCHAR_SIZE
 
- 
Cause: Type conflict when passing an integer. 
Runtime
Error: CALL_FUNCTION_ILLEGAL_INT_LEN 
Runtime Error: CALL_FUNCTION_ILL_INT2_LENG
 
- 
Cause: Type conflict when passing a floating point number 
Runtime Error: CALL_FUNCTION_ILL_FLOAT_FORMAT 
Runtime Error: CALL_FUNCTION_ILL_FLOAT_LENG
 
- 
Cause: Unallowed LEAVE statement on the RFC server 
Runtime Error: CALL_FUNCTION_ILLEGAL_LEAVE
 
- 
Cause: Type conflict when passing a reference 
Runtime
Error: CALL_FUNCTION_OBJECT_SIZE 
Runtime
Error: CALL_FUNCTION_ROT_REGISTER