How To Fix SGSUB103 - RFC communication error for destination &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SGSUB - Central Storage for Data Types and BAdIs

• Message number: 103

• Message text: RFC communication error for destination &1

What causes this issue?

Access to destination &V1& is currently not possible.

System Response

There was a problem with the execution of the function through a Remote
Function Call (error in commmunication or communication setup).
The entered destination was &V1&.
The RFC error message reads:
&V2&
&V3&
&V4&
Die Aktion wurde deshalb abgebrochen.

How to fix this error?

Wiederholen Sie die Aktion spSter.
Wenn die Destination &V1& nber einen lSngeren Zeitraum hinweg nicht
erreichbar ist, dann verstSndigen Sie die Systemadministration fnr &V1&.

Procedure for System Administrators

Weitere Informationen - siehe Systemprotokoll in Destination &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SGSUB103 - RFC communication error for destination &1 ?

  The SAP error message SGSUB103 indicates an RFC (Remote Function Call) communication error for a specified destination. This error can occur due to various reasons, and understanding the cause is essential for troubleshooting. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Target System Down: The target system may be down or not reachable.
  Firewall Restrictions: Firewalls may be blocking the communication between the systems.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to check if the target system is reachable from the SAP system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination (e.g., TCP/IP settings, target host, and service).
  Test the connection using the "Connection Test" button.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  Check the user roles and profiles in both the source and target systems.
  
  
  
  Check Target System Status:
  
  Verify that the target system is up and running.
  Check if the relevant services (like the SAP application server) are active.
  
  
  
  Review Firewall Settings:
  
  Ensure that the firewall settings allow traffic between the SAP systems.
  Consult with your network/security team to verify that the required ports are open.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running on both the source and target systems.
  You can check the status of the gateway using transaction SMGW.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SMGW: To monitor the SAP Gateway.
  ST22: To check for dumps that may provide additional context.
  SLG1: To view application logs for more details on the error.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication errors.
  
  
  Documentation: Review SAP documentation on RFC connections and troubleshooting for more detailed guidance.
  
  
  By following these steps, you should be able to identify and resolve the cause of the SGSUB103 RFC communication error. If the issue persists, consider reaching out to SAP support for further assistance.