How To Fix DT945 - Table &: DD sources could not be read

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 945

• Message text: Table &: DD sources could not be read

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 DT945 - Table &: DD sources could not be read ?

  The SAP error message DT945, which states "Table &: DD sources could not be read," typically indicates an issue with the Data Dictionary (DD) sources for a specific table in the SAP system. This error can occur for various reasons, and understanding the cause and potential solutions is essential for resolving the issue.
  Causes:
  
  Missing or Incomplete Table Definition: The table in question may not have a complete or valid definition in the Data Dictionary.
  Transport Issues: If the table was recently transported from another system, there may have been issues during the transport process that resulted in missing or corrupted definitions.
  Authorization Issues: The user may not have the necessary authorizations to access the Data Dictionary objects related to the table.
  Database Issues: There could be underlying database issues that prevent the system from reading the table definitions.
  System Configuration: Configuration issues in the SAP system or inconsistencies in the Data Dictionary can also lead to this error.
  
  Solutions:
  
  Check Table Definition: Use transaction SE11 (Data Dictionary) to check the definition of the table. Ensure that it exists and is correctly defined.
  Transport Logs: If the table was recently transported, check the transport logs for any errors or warnings that may indicate issues during the transport process.
  Authorization Check: Verify that the user has the necessary authorizations to access the Data Dictionary. You can check this using transaction SU53 or by consulting with your security team.
  Database Consistency Check: Perform a consistency check on the database to ensure that there are no underlying issues. This can be done using transaction DB02 or similar tools.
  Rebuild Table: If the table definition is corrupted, you may need to recreate the table or restore it from a backup if possible.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  System Restart: In some cases, a system restart may help resolve temporary issues related to the Data Dictionary.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE37 (Function Module), SU53 (Authorization Check).
  SAP Notes: Always check for relevant SAP Notes that may provide additional insights or solutions for this error.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the DT945 error in your SAP system.