How To Fix DDLS021 - DDL source & could not be read

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 021

• Message text: DDL source & 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.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS021 - DDL source & could not be read ?

  The SAP error message DDLS021 indicates that the Data Definition Language (DDL) source could not be read. This error typically occurs when there is an issue with the database objects or the DDL source files that are being accessed or processed by the SAP system.
  Causes:
  
  Missing or Corrupted DDL Source: The DDL source file may be missing or corrupted, preventing the system from reading it.
  Authorization Issues: The user may not have the necessary authorizations to access the DDL source.
  Database Connection Problems: There may be issues with the connection to the database, which can prevent the DDL source from being read.
  Transport Issues: If the DDL source is part of a transport request, there may be issues with the transport itself.
  Incorrect Configuration: Configuration settings in the SAP system may be incorrect, leading to the inability to read the DDL source.
  
  Solutions:
  
  Check DDL Source Availability: Verify that the DDL source file exists and is not corrupted. If it is missing, you may need to restore it from a backup or recreate it.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the DDL source. You may need to consult with your SAP security team to adjust user roles and permissions.
  Test Database Connection: Check the database connection settings in the SAP system. Ensure that the database is up and running and that the connection parameters are correct.
  Transport Request Review: If the DDL source is part of a transport request, check the transport logs for any errors. You may need to re-import the transport or resolve any issues indicated in the logs.
  Configuration Check: Review the configuration settings related to DDL processing in the SAP system. Ensure that all necessary parameters are set correctly.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be patches or updates available that resolve the issue.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on DDL processing and error handling.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.