How To Fix 00456 - Timeout during connection setup; check that the partner exists

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 456

• Message text: Timeout during connection setup; check that the partner exists

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 00456 - Timeout during connection setup; check that the partner exists ?

  The SAP error message "00456 Timeout during connection setup; check that the partner exists" typically indicates that there is a problem with establishing a connection between SAP systems or between an SAP system and an external system. This error can occur in various scenarios, such as when using RFC (Remote Function Call), HTTP connections, or other types of communication.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems or between the SAP system and the external partner.
  Incorrect Configuration: The connection parameters (like IP address, hostname, port number) may be incorrectly configured in the SAP system.
  Partner Not Available: The target system or partner may be down or not reachable.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection.
  Timeout Settings: The timeout settings for the connection may be too short, causing the connection attempt to fail before it can be established.
  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 verify that the target system is reachable from the SAP system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify Configuration:
  
  Check the connection settings in transaction SM59 (RFC Destinations) to ensure that the target system's details are correct.
  Make sure that the connection type (e.g., TCP/IP, HTTP) is appropriate for the communication.
  
  
  
  Check Partner Availability:
  
  Ensure that the target system is up and running. You can check the status of the system or contact the system administrator.
  
  
  
  Review Firewall Settings:
  
  Ensure that the necessary ports are open and that there are no firewall rules blocking the connection.
  
  
  
  Adjust Timeout Settings:
  
  If applicable, consider increasing the timeout settings in the connection configuration to allow more time for the connection to be established.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running. You can check this in transaction SMGW.
  Review the gateway logs for any errors or issues.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages that may provide more context.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: SAP Gateway Monitor
  SM21: System Log
  ST22: Dump Analysis
  
  
  
  Documentation: Refer to SAP Help Portal or SAP Notes for specific guidance related to your version of SAP and the type of connection you are trying to establish.
  
  
  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 diagnose and resolve the "00456 Timeout during connection setup" error in your SAP environment.