How To Fix IUUC_REPAIR020 - Please provide RFC destination for CDC system

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_REPAIR - Repair

• Message number: 020

• Message text: Please provide RFC destination for CDC system

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_REPAIR020 - Please provide RFC destination for CDC system ?

  The SAP error message IUUC_REPAIR020 typically indicates that there is an issue with the configuration of the Remote Function Call (RFC) destination for the Change Data Capture (CDC) system. This error often arises in the context of SAP Landscape Transformation (SLT) or SAP Data Services when trying to replicate data from one system to another.
  Cause:
  The error message IUUC_REPAIR020 suggests that the system is unable to find or connect to the specified RFC destination for the CDC system. This can happen due to several reasons:
  
  Missing RFC Destination: The RFC destination for the CDC system has not been created or is not configured correctly.
  Incorrect Configuration: The existing RFC destination may have incorrect parameters, such as the wrong target system, user credentials, or connection type.
  Network Issues: There may be network connectivity issues preventing the source system from reaching the CDC system.
  Authorization Issues: The user credentials used in the RFC destination may not have the necessary authorizations to connect to the CDC system.
  
  Solution:
  To resolve the IUUC_REPAIR020 error, follow these steps:
  
  
  Check RFC Destination:
  
  Go to transaction code SM59 in the SAP GUI.
  Look for the RFC destination that corresponds to the CDC system.
  Ensure that it is defined correctly and that the connection type is appropriate (usually "3" for TCP/IP connections).
  
  
  
  Test the Connection:
  
  In SM59, select the RFC destination and click on the "Connection Test" button to verify that the connection can be established successfully.
  If the test fails, check the error message for more details.
  
  
  
  Review Configuration:
  
  Ensure that the target system's details (such as hostname, system number, and client) are correct.
  Verify that the user credentials (username and password) are valid and have the necessary authorizations.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no firewall or network issues preventing the source system from reaching the CDC system.
  You can use tools like ping or telnet to check connectivity to the target system.
  
  
  
  Review Authorizations:
  
  Make sure that the user defined in the RFC destination has the necessary authorizations to perform the required operations in the CDC system.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for SLT or CDC for any specific configuration requirements or troubleshooting steps related to your version of SAP.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SLT - SAP Landscape Transformation
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on configuring RFC destinations for CDC systems.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the IUUC_REPAIR020 error message.