How To Fix CNV_IUUC_DB_CONN078 - Failed to delete DDIC proxy for logging table &1 of table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 078

• Message text: Failed to delete DDIC proxy for logging table &1 of table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_DB_CONN078 - Failed to delete DDIC proxy for logging table &1 of table &2 ?

  The SAP error message CNV_IUUC_DB_CONN078 indicates that there was a failure in deleting the Data Dictionary (DDIC) proxy for a logging table associated with a specific table. This error typically arises in the context of data migration or data transformation processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services.
  Cause:
  The error can be caused by several factors, including:
  
  Database Constraints: There may be foreign key constraints or other dependencies that prevent the deletion of the DDIC proxy.
  Authorization Issues: The user executing the operation may not have the necessary authorizations to delete the DDIC proxy.
  Table Locking: The table might be locked by another process, preventing the deletion of the proxy.
  Technical Issues: There could be underlying technical issues with the database or the SAP system itself, such as inconsistencies in the data dictionary or issues with the transport layer.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the deletion. This may involve checking roles and permissions in the SAP system.
  
  
  Check for Locks: Use transaction codes like SM12 to check for any locks on the table. If there are locks, you may need to wait for them to be released or manually unlock them if appropriate.
  
  
  Review Dependencies: Investigate any foreign key constraints or dependencies that might be preventing the deletion. You can use transaction SE11 to check the table definitions and relationships.
  
  
  Database Consistency: Run consistency checks on the database to ensure that there are no underlying issues. You can use transaction DB02 to monitor database performance and check for inconsistencies.
  
  
  Manual Deletion: If the automated process fails, you may need to manually delete the DDIC proxy using transaction SE14 (Database Utility) or SE11 (Data Dictionary) if you are confident that it is safe to do so.
  
  
  Check Logs: Review the application logs (transaction SLG1) for more detailed error messages that might provide additional context on why the deletion failed.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE14, SM12, and SLG1 for managing database objects and monitoring locks.
  Documentation: Review SAP documentation related to data migration and transformation processes, especially if you are using SLT or Data Services.
  System Logs: Regularly monitor system logs and performance metrics to catch potential issues early.
  
  By following these steps, you should be able to diagnose and resolve the CNV_IUUC_DB_CONN078 error effectively.