How To Fix ADT_TTYP017 - Non-Unique

SAP Error Message - Details

• Message type: E = Error

• Message class: ADT_TTYP - ADT Table Type Editor

• Message number: 017

• Message text: Non-Unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ADT_TTYP017 - Non-Unique ?

  The SAP error message ADT_TTYP017 "Non-Unique" typically occurs in the context of data dictionary objects, particularly when dealing with table types or structures in ABAP Dictionary (ADT). This error indicates that there is a conflict due to non-unique entries, which can happen in various scenarios, such as when defining a table type or when trying to create a structure that has duplicate field names.
  Cause:
  
  Duplicate Field Names: The most common cause of this error is that the table type or structure you are trying to create or modify has fields with the same name. Each field in a structure or table type must have a unique name.
  Conflicting Definitions: If you are trying to create a new table type or structure that conflicts with an existing one (e.g., same name in the same namespace), this can also lead to this error.
  Inconsistent Data Types: If you are trying to define a field with the same name but different data types in the same structure or table type, it can also trigger this error.
  
  Solution:
  
  Check Field Names: Review the field names in your table type or structure definition. Ensure that all field names are unique within that definition.
  Rename Fields: If you find duplicate field names, rename them to ensure uniqueness.
  Check Existing Definitions: If you are creating a new table type or structure, check if there is already an existing definition with the same name. If so, consider using a different name or modifying the existing definition.
  Review Data Types: Ensure that you are not trying to define fields with the same name but different data types within the same structure or table type.
  Use Unique Namespaces: If applicable, use unique namespaces for your custom objects to avoid conflicts with standard SAP objects.
  
  Related Information:
  
  ABAP Dictionary: Familiarize yourself with the ABAP Dictionary, as it is the central repository for all data definitions in SAP.
  Naming Conventions: Follow SAP naming conventions for custom objects to avoid conflicts with standard objects.
  Documentation: Refer to SAP documentation or the SAP Help Portal for more detailed information on data dictionary objects and best practices.
  
  If you continue to experience issues after checking these points, consider consulting with a colleague or reaching out to SAP support for further assistance.