How To Fix IUUC_MAIN120 - Logging table deletion failed at least for some tables in system &1

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 120

• Message text: Logging table deletion failed at least for some tables in system &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_MAIN120 - Logging table deletion failed at least for some tables in system &1 ?

  The SAP error message IUUC_MAIN120 indicates that there was a failure in deleting logging tables for certain tables in the system. This error typically occurs in the context of SAP Landscape Transformation (SLT) or when using the SAP Data Services for data replication or transformation.
  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 logging tables.
  Insufficient Authorizations: The user executing the deletion may not have the necessary authorizations to perform the operation.
  Active Replication: If the logging tables are still in use for ongoing replication processes, they cannot be deleted.
  Database Locks: There may be locks on the tables that prevent deletion.
  Technical Issues: There could be underlying technical issues with the database or the SAP system itself.
  
  Solution:
  To resolve the IUUC_MAIN120 error, you can take the following steps:
  
  
  Check Active Replication: Ensure that there are no active replication processes using the logging tables. If there are, you may need to stop the replication before attempting to delete the tables.
  
  
  Review Authorizations: Verify that the user has the necessary authorizations to delete the logging tables. You may need to consult with your SAP security team.
  
  
  Check for Locks: Use database tools or transaction codes (like SM12 for SAP) to check for any locks on the tables. If locks are found, you may need to resolve them before proceeding.
  
  
  Database Constraints: Investigate any foreign key constraints or dependencies that might be preventing the deletion. You may need to drop or modify these constraints.
  
  
  Manual Deletion: If the automated process fails, you can manually delete the logging tables using SQL commands, but this should be done with caution and ideally under the guidance of SAP support or your database administrator.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that can resolve the issue.
  
  
  System Logs: Review system logs (transaction SLG1) for more detailed error messages that can provide additional context on why the deletion failed.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT (for Landscape Transformation) and SM37 (for job monitoring).
  SAP Documentation: Refer to the official SAP documentation for SLT and data replication for best practices and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.