How To Fix /LTB/TR_MODEL022 - RFC destination used in &1 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: /LTB/TR_MODEL -

• Message number: 022

• Message text: RFC destination used in &1 is unknown

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /LTB/TR_MODEL022 - RFC destination used in &1 is unknown ?

  The SAP error message /LTB/TR_MODEL022 RFC destination used in &1 is unknown typically indicates that there is an issue with the Remote Function Call (RFC) destination configuration in your SAP system. This error can occur in various scenarios, particularly when trying to execute a function module or a transaction that relies on an RFC connection to another system.
  Cause:
  
  Missing RFC Destination: The specified RFC destination does not exist in the system.
  Incorrect Configuration: The RFC destination may exist but is incorrectly configured (e.g., wrong target system, incorrect logon credentials).
  Authorization Issues: The user may not have the necessary authorizations to access the specified RFC destination.
  Network Issues: There may be network connectivity issues preventing access to the target system.
  Transport Layer Issues: If this error occurs during a transport operation, it may indicate that the transport layer is not correctly set up.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Look for the RFC destination mentioned in the error message.
  If it does not exist, you will need to create it. If it exists, check its configuration.
  
  
  
  Verify Configuration:
  
  Ensure that the target system details (like hostname, system number, client, etc.) are correct.
  Check the logon credentials (username and password) for the RFC destination.
  Test the connection using the "Connection Test" button in SM59.
  
  
  
  Check Authorizations:
  
  Ensure that the user executing the transaction has the necessary authorizations to use the RFC destination.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues preventing access to the target system. You can use tools like ping or telnet to check connectivity.
  
  
  
  Transport Layer Configuration:
  
  If this error occurs during a transport operation, check the transport layer settings in transaction SE03 or STMS.
  
  
  
  Consult Documentation:
  
  Review SAP Notes and documentation related to the specific RFC destination and the error message for any additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  ST22: Dump analysis (if applicable).
  SU53: Authorization check (if applicable).
  SE03: Transport Organizer tools.
  STMS: Transport Management System.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  By following these steps, you should be able to identify and resolve the issue related to the RFC destination error in your SAP system.