How To Fix UJA_EXCEPTION171 - Modified comment table

SAP Error Message - Details

• Message type: E = Error

• Message class: UJA_EXCEPTION - BPC: Admin exception message class

• Message number: 171

• Message text: Modified comment table

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJA_EXCEPTION171 - Modified comment table ?

  The SAP error message UJA_EXCEPTION171, which refers to a "Modified comment table," typically occurs in the context of SAP's data transfer processes, particularly when dealing with the SAP Business Warehouse (BW) or SAP Data Services. This error indicates that there is an inconsistency or issue with the comment table that is used for logging or tracking changes in the data transfer process.
  Cause:
  
  Data Inconsistency: The comment table may have been modified or corrupted, leading to inconsistencies in the data transfer process.
  Concurrent Modifications: If multiple processes are trying to access or modify the comment table simultaneously, it can lead to conflicts.
  System Configuration Issues: Incorrect configuration settings in the BW or data transfer settings can lead to this error.
  Transport Issues: If there have been recent transports that included changes to the comment table or related objects, it may lead to this error.
  
  Solution:
  
  Check for Modifications: Review any recent changes made to the comment table or related configurations. Ensure that no unauthorized changes have been made.
  Consistency Check: Run consistency checks on the BW system to identify and resolve any inconsistencies in the data model or comment tables.
  Lock Management: Ensure that there are no locks on the comment table that could be causing the issue. You may need to release locks or wait for other processes to complete.
  Recreate the Comment Table: If the table is corrupted, you may need to recreate it. This should be done with caution and ideally in a test environment first.
  Review Logs: Check the system logs for any additional error messages or warnings that could provide more context about the issue.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it impacts critical business processes.
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for best practices on data transfer processes and comment table management.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Monitoring Tools: Utilize SAP monitoring tools to keep track of system performance and identify potential issues before they escalate.
  
  Always ensure that you have proper backups and a rollback plan before making significant changes to the database or system configurations.