DDLS393 - Extend & has further extend & as parent. This is not supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 393

• Message text: Extend & has further extend & as parent. This is not supported.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS393 - Extend & has further extend & as parent. This is not supported. ?

  The SAP error message DDLS393 typically occurs during the process of extending a data element or domain in the ABAP Dictionary. The error indicates that the data element or domain you are trying to extend has a parent that also has extensions, which is not supported in the SAP system.
  Cause:
  
  Hierarchical Structure: In SAP, data elements and domains can have a hierarchical structure where a data element can inherit properties from a parent data element. If the parent data element itself has extensions, the system does not allow further extensions to maintain data integrity and avoid complex inheritance issues.
  Data Element/Domain Restrictions: SAP has specific rules regarding the extension of data elements and domains to prevent circular references and ensure that the data model remains manageable.
  
  Solution:
  
  
  Check Parent Data Element: Review the parent data element of the one you are trying to extend. If it has extensions, you will need to either:
  
  Avoid extending the current data element.
  Create a new data element that does not have a parent with extensions.
  
  
  
  Use Alternative Approaches: If you need to modify the properties of the data element, consider:
  
  Modifying the existing data element directly if possible.
  Creating a new data element without extending the existing one.
  Using a different data type or structure that meets your requirements without causing extension issues.
  
  
  
  Consult Documentation: Refer to SAP documentation or the ABAP Dictionary documentation for guidelines on data element and domain extensions to understand the limitations and best practices.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to this error message. Sometimes, there are known issues or additional guidance provided by SAP.
  ABAP Dictionary: Familiarize yourself with the ABAP Dictionary and its rules regarding data elements and domains. Understanding the hierarchy and relationships can help avoid such errors in the future.
  Testing: Always test changes in a development environment before moving to production to ensure that the changes do not introduce new issues.
  
  If you continue to face challenges, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.