How To Fix CNV_IUUC_REPLICATION320 - Error while retrieving RFC-parameters for rfc destination &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 320

• Message text: Error while retrieving RFC-parameters for rfc destination &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION320 - Error while retrieving RFC-parameters for rfc destination &1 ?

  The SAP error message CNV_IUUC_REPLICATION320 indicates that there is an issue with retrieving RFC parameters for a specified RFC destination. This error typically occurs in the context of data replication or migration processes, particularly when using the SAP Landscape Transformation (SLT) or other data replication tools.
  Cause:
  The error can be caused by several factors, including:
  
  
  Incorrect RFC Destination Configuration: The RFC destination specified may not be correctly configured in the SAP system. This could include incorrect connection parameters, such as the target system's hostname, system number, client, user credentials, etc.
  
  
  Network Issues: There may be network connectivity issues between the source and target systems, preventing the RFC call from being executed successfully.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the required resources.
  
  
  System Configuration: The target system may not be properly set up to accept RFC calls, or there may be issues with the SAP Gateway.
  
  
  Transport Layer Issues: There could be issues with the transport layer that are preventing the RFC call from being processed.
  
  
  Solution:
  To resolve the CNV_IUUC_REPLICATION320 error, you can follow these steps:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination that is causing the issue.
  Verify that all connection parameters (such as target host, system number, client, user, and password) are correct.
  Test the connection using the "Connection Test" button to ensure it is working properly.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues between the source and target systems. You can use tools like ping or telnet to check connectivity.
  
  
  
  Review User Authorizations:
  
  Ensure that the user specified in the RFC destination has the necessary authorizations to perform the required actions in the target system.
  
  
  
  Check System Configuration:
  
  Ensure that the target system is configured to accept RFC calls. Check the SAP Gateway settings and ensure that the necessary services are running.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages that may provide more context about the issue.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SM21 - System Log
  ST22 - Dump Analysis
  SLT - SAP Landscape Transformation
  
  
  
  Documentation: Review the official SAP documentation for SLT and RFC connections for more detailed information on configuration and troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CNV_IUUC_REPLICATION320 error.