How To Fix DT223 - There are too many fields (>&)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 223

• Message text: There are too many fields (>&)

What causes this issue?

The table has too many fields.

System Response

The table does not conform to certain internal restrictions. As a
result, it is not possible to activate the table.

How to fix this error?

Remove fields from the table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT223 - There are too many fields (>&) ?

  The SAP error message DT223, which states "There are too many fields (>&)," typically occurs when you are trying to create or modify a data structure, such as a table or a structure in ABAP, and the number of fields exceeds the allowed limit.
  Cause:
  
  Field Limit Exceeded: SAP has a limit on the number of fields that can be defined in a table or structure. This limit is generally 16,384 fields for a table, but it can vary based on the specific context or version of SAP.
  Data Dictionary Constraints: The error may arise from constraints in the Data Dictionary (DDIC) where the number of fields in a structure or table exceeds the maximum allowed.
  
  Solution:
  
  
  Reduce the Number of Fields: Review the structure or table definition and try to reduce the number of fields. This may involve:
  
  Combining fields where possible.
  Normalizing the data model to split large tables into smaller, related tables.
  Removing any unnecessary fields that are not required for your application.
  
  
  
  Use Structures or Views: If you have a large number of fields that are not always needed together, consider using:
  
  Structures: Create smaller structures that can be used in conjunction with each other.
  Views: Create database views that can combine data from multiple tables without needing to have all fields in a single table.
  
  
  
  Check for Redundant Fields: Ensure that there are no redundant fields in your design. Sometimes, fields may be duplicated or can be derived from other fields.
  
  
  Consult Documentation: Refer to SAP documentation or the Data Dictionary documentation for specific limits and best practices regarding table and structure design.
  
  
  Performance Considerations: Even if you are within the limits, consider the performance implications of having a very large number of fields. It may be beneficial to optimize the design for better performance.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to this error message.
  Data Dictionary (SE11): Use transaction SE11 to view and modify the data dictionary objects and check the field definitions.
  ABAP Development Guidelines: Follow best practices for ABAP development to ensure efficient and maintainable code.
  
  If the problem persists after trying these solutions, it may be helpful to consult with an SAP Basis or ABAP expert who can provide more tailored assistance based on your specific system configuration and requirements.