How To Fix UMG292 - Structure must be empty for reference type 'I'.

SAP Error Message - Details

• Message type: E = Error

• Message class: UMG - Message Class for the Unicode Migration Tool.

• Message number: 292

• Message text: Structure must be empty for reference type 'I'.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UMG292 - Structure must be empty for reference type 'I'. ?

  The SAP error message UMG292, which states "Structure must be empty for reference type 'I'," typically occurs in the context of ABAP programming when you are trying to use a structure that is not compatible with a reference type. This error is often related to the use of reference types in ABAP, particularly when dealing with object-oriented programming.
  Cause:
  
  Reference Type Misuse: The error indicates that you are trying to use a structure that is not empty as a reference type. In ABAP, reference types (like classes or interfaces) should not have any fields defined in them when they are being used as a reference.
  Incorrect Declaration: You may have declared a structure that is intended to be a reference type but have included fields in it, which is not allowed.
  Type Mismatch: There might be a mismatch between the expected type and the actual type being used in your code.
  
  Solution:
  
  
  Check Structure Definition: Review the definition of the structure you are using. If it is intended to be a reference type, ensure that it does not contain any fields. It should be defined as an empty structure.
  Example:
  TYPES: BEGIN OF my_empty_structure,
           " No fields here
         END OF my_empty_structure.
  
  
  Use Correct Type: If you need to use a structure with fields, ensure that you are using a value type instead of a reference type. You can define a normal structure with fields if that is your intention.
  
  
  Review Code Logic: Ensure that the logic in your code aligns with the type definitions. If you are trying to assign a reference type to a variable that expects a structure, you will need to adjust your code accordingly.
  
  
  Debugging: If you are unsure where the error is occurring, use debugging tools in SAP to trace the execution of your program and identify where the type mismatch is happening.
  
  
  Related Information:
  
  ABAP Reference Types: In ABAP, reference types are used to create instances of classes or interfaces. They are different from value types, which are used for structures and data elements.
  Object-Oriented Programming in ABAP: Understanding the principles of object-oriented programming in ABAP can help you avoid such errors. Familiarize yourself with concepts like classes, interfaces, and reference variables.
  SAP Documentation: Refer to the official SAP documentation for more details on data types and structures in ABAP, as well as best practices for defining and using reference types.
  
  By following these steps, you should be able to resolve the UMG292 error and ensure that your ABAP code is correctly structured.