How To Fix IUUC_MAIN181 - Could not determine system data from source system (rfc destination &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 181

• Message text: Could not determine system data from source system (rfc destination &1)

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 IUUC_MAIN181 - Could not determine system data from source system (rfc destination &1) ?

  The SAP error message IUUC_MAIN181 indicates that the system is unable to determine system data from the specified source system via the RFC (Remote Function Call) destination. This error typically occurs in the context of SAP Landscape Transformation (SLT) or when setting up data replication.
  Causes:
  
  Incorrect RFC Destination: The RFC destination specified may not be correctly configured or may not exist.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the source system.
  Network Issues: There may be network connectivity problems between the source and target systems.
  Source System Not Available: The source system may be down or not reachable.
  Configuration Issues: There may be misconfigurations in the SLT setup or in the source system settings.
  
  Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify that the RFC destination is correctly configured and test the connection to ensure it is working.
  
  
  
  Check Authorizations:
  
  Ensure that the user used in the RFC connection has the necessary authorizations in the source system. This includes access to the relevant tables and data.
  
  
  
  Network Connectivity:
  
  Check the network connection between the source and target systems. Ensure that there are no firewalls or network issues blocking the connection.
  
  
  
  Source System Availability:
  
  Verify that the source system is up and running. You can try logging into the source system to confirm its availability.
  
  
  
  Review SLT Configuration:
  
  Check the SLT configuration settings to ensure that everything is set up correctly. This includes checking the configuration of the replication setup and ensuring that the source system is properly defined.
  
  
  
  Check Logs:
  
  Review the SLT logs for any additional error messages or warnings that might provide more context about the issue. You can find logs in transaction SLG1 or in the SLT monitoring tools.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SM59: RFC Destination Configuration
  SLT: SAP Landscape Transformation
  SLG1: Application Log
  
  
  Documentation: Refer to SAP Help Portal for detailed documentation on SLT and RFC configuration.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the issue causing the IUUC_MAIN181 error message.