How To Fix LTR2_ES_CHECK249 - Unable to determine a system hash from RFC destination '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_ES_CHECK - LTR2 Checks on Embedded Specification

• Message number: 249

• Message text: Unable to determine a system hash from RFC destination '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_ES_CHECK249 - Unable to determine a system hash from RFC destination '&1' ?

  The SAP error message LTR2_ES_CHECK249 indicates that the system is unable to determine a system hash from the specified RFC destination. This error typically arises in the context of SAP Landscape Management (LaMa) or when dealing with system replication and landscape configuration.
  Cause:
  
  RFC Destination Issues: The specified RFC destination (&1) may not be correctly configured or may not be reachable. This could be due to network issues, incorrect credentials, or misconfiguration in the destination settings.
  Missing or Incorrect Configuration: The system hash may not be generated if the system is not properly configured in the SAP Landscape Management or if the required parameters are missing.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the required data.
  System Status: The target system may be down or not in a state that allows for hash generation (e.g., not fully started or in a maintenance mode).
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination specified in the error message.
  Test the connection to ensure it is reachable and correctly configured.
  Verify that the connection type (e.g., TCP/IP) is appropriate and that the target system is online.
  
  
  
  Review Configuration:
  
  Ensure that the system is properly configured in SAP Landscape Management.
  Check for any missing parameters or settings that may be required for the system hash generation.
  
  
  
  User Authorizations:
  
  Verify that the user credentials used for the RFC connection have the necessary authorizations to perform the required operations.
  Check roles and authorizations in transaction PFCG.
  
  
  
  System Status:
  
  Ensure that the target system is up and running. Check the system logs for any issues that may prevent it from being accessible.
  If the system is in maintenance mode, bring it back to a normal operational state.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to Landscape Management and RFC connections for any additional configuration steps that may be required.
  
  
  
  Related Information:
  
  Transaction Codes: SM59 (RFC Destinations), PFCG (Role Maintenance), LTR2 (Landscape Management).
  SAP Notes: Search for specific SAP Notes related to LTR2_ES_CHECK249 for any patches or updates that may resolve the issue.
  SAP Community: Consider checking the SAP Community forums for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage SAP support for further assistance.