How To Fix CONV165 - &3: Error while connecting to RFC Destination &1, sy-subrc= &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CONV - Messages in Connection with the Converter

• Message number: 165

• Message text: &3: Error while connecting to RFC Destination &1, sy-subrc= &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CONV165 - &3: Error while connecting to RFC Destination &1, sy-subrc= &2 ?

  The SAP error message CONV165 indicates that there was an error while trying to connect to a Remote Function Call (RFC) destination. The message format is as follows:
  CONV165 &3: Error while connecting to RFC Destination &1, sy-subrc= &2
  Causes
  The error can be caused by several factors, including:
  
  
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect connection parameters such as the target system, user credentials, or connection type.
  
  
  Network Issues: There may be network connectivity issues between the SAP system and the target system. This could be due to firewall settings, network outages, or incorrect IP addresses.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to connect to the target system.
  
  
  Target System Down: The target system may be down or not reachable, which would prevent a successful connection.
  
  
  SAP Gateway Issues: Problems with the SAP Gateway on either the source or target system can also lead to connection errors.
  
  
  Version Compatibility: There may be compatibility issues between different versions of SAP systems.
  
  
  Solutions
  To resolve the CONV165 error, you can take the following steps:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination mentioned in the error message.
  Verify that the connection parameters (such as the target host, system number, client, user, and password) are correct.
  
  
  
  Test the Connection:
  
  In transaction SM59, select the RFC destination and use the "Connection Test" option to check if the connection can be established successfully.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues preventing access to the target system. You can use tools like ping or telnet to check connectivity.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations in the target system.
  
  
  
  Check Target System Status:
  
  Verify that the target SAP system is up and running. You can check this by logging into the target system directly.
  
  
  
  Review SAP Gateway Logs:
  
  Check the SAP Gateway logs for any errors that might provide more context about the connection issue. You can find logs in transaction SMGW.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that might address known issues related to RFC connections.
  
  
  
  Check for Version Compatibility:
  
  Ensure that both systems are compatible in terms of SAP versions and configurations.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: SAP Gateway Monitor
  ST22: Dump Analysis (to check for any ABAP runtime errors)
  SICF: Maintain HTTP Services (if using HTTP connections)
  
  
  
  SAP Documentation: Refer to the official SAP Help Portal for detailed documentation on RFC connections and troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the CONV165 error. If the problem persists, consider reaching out to your SAP Basis team or SAP support for further assistance.