How To Fix SO345 - RFC error: &

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 345

• Message text: RFC error: &

What causes this issue?

An error occurred in the communication between the SAP system and PC.

System Response

The system cannot execute the required function.

How to fix this error?

Please contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SO345 - RFC error: & ?

  The SAP error message SO345, which indicates an RFC (Remote Function Call) error, typically arises when there is an issue with the communication between SAP systems or between an SAP system and an external system. The error message may include additional details that can help identify the specific cause of the problem.
  Common Causes of SO345 RFC Error:
  
  
  Network Issues: Problems with the network connection between the SAP systems can lead to RFC errors. This could be due to firewalls, routing issues, or network outages.
  
  
  Configuration Issues: Incorrect configuration of RFC destinations in the SAP system can cause communication failures. This includes incorrect settings in transaction SM59.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to perform the requested operation.
  
  
  System Availability: The target system may be down or not reachable, leading to an inability to establish an RFC connection.
  
  
  Resource Limitations: The SAP system may be experiencing resource limitations, such as memory or CPU constraints, which can affect its ability to process RFC calls.
  
  
  Version Compatibility: Incompatibility between different versions of SAP systems can also lead to RFC errors.
  
  
  Solutions to SO345 RFC Error:
  
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Ensure that the connection type is correct (e.g., TCP/IP).
  Test the connection using the "Connection Test" option in SM59.
  
  
  
  Check User Authorizations: Ensure that the user credentials used for the RFC connection have the necessary authorizations. You can check this in transaction SU01.
  
  
  Check System Status: Verify that the target system is up and running. You can check the system status in transaction SM51 or by logging into the target system directly.
  
  
  Monitor System Resources: Use transaction SM50 or SM66 to monitor the system's performance and check for any resource bottlenecks.
  
  
  Review Logs: Check the system logs for any additional error messages that may provide more context about the RFC error. You can use transaction SM21 to view the system log.
  
  
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address the specific RFC error you are encountering.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SU01: User Maintenance
  SM21: System Log
  SM50: Work Process Overview
  SM66: Global Work Process Overview
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more detailed information on RFC connections and troubleshooting.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.