How To Fix DDU018 - View &: DD header could not be written

SAP Error Message - Details

• Message type: E = Error

• Message class: DDU - Dictionary Tools 5.0

• Message number: 018

• Message text: View &: DD header could not be written

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDU018 - View &: DD header could not be written ?

  The SAP error message DDU018, which states "View &: DD header could not be written," typically occurs during the activation of a data dictionary object, such as a table, view, or structure. This error indicates that there was a problem writing the data dictionary header for the specified object.
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to create or modify data dictionary objects.
  Database Issues: There may be issues with the underlying database, such as connectivity problems or database locks.
  Transport Issues: If the object is being transported from one system to another, there may be issues with the transport request.
  Inconsistent Data Dictionary: The data dictionary may be in an inconsistent state due to previous errors or incomplete activations.
  System Configuration: There may be configuration issues in the SAP system that prevent the writing of the data dictionary header.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to create or modify data dictionary objects. This can be done by checking the user's roles and authorizations in transaction SU53 or SUIM.
  Check Database Connection: Verify that the database is up and running and that there are no connectivity issues. You can check the database logs for any errors.
  Check Transport Requests: If the object is part of a transport request, ensure that the transport is correctly configured and that there are no errors in the transport logs.
  Activate Objects Manually: Try to activate the object manually using transaction SE11 or SE14. This may provide more detailed error messages.
  Check for Locks: Use transaction SM12 to check for any locks on the database that may be preventing the write operation.
  Review System Logs: Check the system logs (transaction SM21) for any related error messages that could provide more context on the issue.
  Consistency Check: Run a consistency check on the data dictionary using transaction SE11 or SE14 to identify any inconsistencies that need to be resolved.
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE11: Data Dictionary
  SE14: Database Utility
  SM12: Display and Delete Locks
  SM21: System Log
  SU53: Authorization Check
  SUIM: User Information System
  
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.