How To Fix CNV_IUUC_DB_CONN109 - Failed to read table DD02L and DD02T, RFC destination &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 109

• Message text: Failed to read table DD02L and DD02T, 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_DB_CONN109 - Failed to read table DD02L and DD02T, RFC destination &1 ?

  The SAP error message CNV_IUUC_DB_CONN109 indicates that there is a failure in reading the database tables DD02L and DD02T due to issues with the RFC (Remote Function Call) destination specified in the error message. This error typically occurs in the context of data migration or system conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services.
  Cause:
  
  RFC Destination Issues: The specified RFC destination may not be correctly configured, or it may be pointing to an incorrect or inactive system.
  Authorization Problems: The user associated with the RFC destination may not have the necessary authorizations to access the tables DD02L and DD02T.
  Network Issues: There may be network connectivity problems between the systems involved.
  Database Issues: The database itself may be down or experiencing issues that prevent access to the required tables.
  Table Locks: The tables DD02L and DD02T may be locked or in a state that prevents reading.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify that the RFC destination is correctly configured and points to the correct system.
  Test the connection to ensure it is active and reachable.
  
  
  
  Check Authorizations:
  
  Ensure that the user credentials used in the RFC destination have the necessary authorizations to read the DD02L and DD02T tables.
  You may need to consult with your security team to verify and adjust the authorizations.
  
  
  
  Network Connectivity:
  
  Check for any network issues that may be preventing communication between the systems.
  Use tools like ping or traceroute to diagnose connectivity problems.
  
  
  
  Database Status:
  
  Ensure that the database is up and running without issues.
  Check for any database locks or performance issues that may be affecting access to the tables.
  
  
  
  Check Table Locks:
  
  Use transaction SE11 or SE16 to check the status of the tables DD02L and DD02T.
  If they are locked, you may need to investigate further to identify the cause of the lock.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Related Information:
  
  DD02L: This table contains the definitions of database tables in the SAP system.
  DD02T: This table contains the text descriptions for the database tables defined in DD02L.
  RFC: Remote Function Call is a protocol used in SAP for communication between different systems.
  SLT: SAP Landscape Transformation is a tool used for real-time data replication and transformation.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.