How To Fix DDLS224 - Currently allowed number & for unions is exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 224

• Message text: Currently allowed number & for unions is exceeded

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 DDLS224 - Currently allowed number & for unions is exceeded ?

  The SAP error message DDLS224 indicates that the currently allowed number of fields for unions in a data definition has been exceeded. This typically occurs when you are trying to define a union in a data dictionary object (like a table or a view) that exceeds the maximum limit set by the system.
  Cause:
  The error is caused by attempting to create a union that includes more fields than the system allows. In SAP, there are limits on the number of fields that can be included in a union, and exceeding this limit will trigger the DDLS224 error.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Reduce the Number of Fields: Review the union definition and try to reduce the number of fields included in the union. This may involve:
  
  Removing unnecessary fields.
  Splitting the union into multiple unions if possible.
  
  
  
  Reassess the Design: If the union is essential and cannot be reduced, consider redesigning the data structure. This might involve:
  
  Creating separate views or tables that can be joined later.
  Using alternative data modeling techniques that do not rely on unions.
  
  
  
  Check SAP Notes: Sometimes, SAP releases notes or patches that may address specific limitations or provide workarounds. Check the SAP Support Portal for any relevant notes related to this error.
  
  
  Consult Documentation: Review the SAP documentation for the specific version you are using to understand the limits and best practices for defining unions.
  
  
  Contact SAP Support: If you are unable to resolve the issue through the above methods, consider reaching out to SAP support for assistance.
  
  
  Related Information:
  
  SAP Data Dictionary: Understanding how the data dictionary works in SAP can help you design your data structures more effectively.
  Performance Considerations: Be aware that using large unions can impact performance. Always aim for efficient data modeling.
  Version-Specific Limits: The limits on the number of fields in unions may vary between different versions of SAP. Always refer to the documentation for your specific version.
  
  By following these steps, you should be able to address the DDLS224 error and successfully define your data structures in SAP.