How To Fix CNV_CDMC_UCIA042 - RFC information about the & system could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_UCIA - CDMC Upgrade/Change Impact Analysis

• Message number: 042

• Message text: RFC information about the & system could not be determined

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_UCIA042 - RFC information about the & system could not be determined ?

  The SAP error message CNV_CDMC_UCIA042 typically indicates that there is an issue with the Remote Function Call (RFC) connection to a system, and the system information could not be determined. This error is often encountered during data migration or conversion processes, particularly when using the SAP Conversion Tools.
  Cause:
  
  RFC Connection Issues: The most common cause is that the RFC connection to the target or source system is not properly configured or is not functioning.
  Missing System Information: The system information required for the operation is not available or cannot be retrieved.
  Authorization Issues: The user executing the operation may not have the necessary authorizations to access the required system information.
  Network Issues: There may be network connectivity issues preventing the system from reaching the target system.
  Configuration Errors: Incorrect settings in the SAP system configuration or in the RFC destination settings.
  
  Solution:
  
  
  Check RFC Connections:
  
  Go to transaction SM59 and verify the RFC destination settings. Ensure that the connection is correctly configured and test the connection to see if it is successful.
  
  
  
  Verify System Information:
  
  Ensure that the system information (like system ID, client, etc.) is correctly defined in the relevant configuration settings.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to perform the operation. You may need to check roles and profiles assigned to the user.
  
  
  
  Network Connectivity:
  
  Check for any network issues that might be preventing the connection. This can include firewall settings, VPN issues, or other network configurations.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that might provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration or conversion tool you are using for any additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance, providing them with the error details and any logs you have reviewed.
  
  
  
  Related Information:
  
  Transaction Codes: SM59 (RFC Destinations), SM21 (System Log), SLG1 (Application Log).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the specific migration tool or process you are using, as it may contain specific requirements or configurations needed to avoid this error.
  
  By following these steps, you should be able to identify and resolve the issue causing the CNV_CDMC_UCIA042 error.