How To Fix RSD_GEO309 - Assignment from a Structure Field to a Fieldsymbol failed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_GEO -

• Message number: 309

• Message text: Assignment from a Structure Field to a Fieldsymbol failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_GEO309 - Assignment from a Structure Field to a Fieldsymbol failed ?

  The SAP error message RSD_GEO309, which states "Assignment from a Structure Field to a Fieldsymbol failed," typically occurs in the context of ABAP programming, particularly when dealing with field symbols and structures. This error indicates that there is an issue with the assignment of a field from a structure to a field symbol, which can happen for several reasons.
  Causes:
  
  
  Type Mismatch: The field symbol may not be compatible with the type of the structure field you are trying to assign. For example, if the field symbol is defined to point to a different data type than the structure field, the assignment will fail.
  
  
  Field Symbol Not Properly Defined: If the field symbol is not properly defined or initialized before the assignment, it can lead to this error.
  
  
  Structure Field Not Accessible: If the structure field you are trying to access is not available in the current context or is not part of the structure you are working with, the assignment will fail.
  
  
  Incorrect Use of Field Symbols: If the field symbol is being used in a way that does not conform to its intended use, such as trying to assign a non-structure field to it.
  
  
  Solutions:
  
  
  Check Data Types: Ensure that the data type of the field symbol matches the data type of the structure field you are trying to assign. You can use the DESCRIBE FIELD statement to check the types.
  
  
  Proper Initialization: Make sure that the field symbol is properly initialized before the assignment. Use the ASSIGN statement correctly to point the field symbol to the desired structure field.
  FIELD-SYMBOLS: <fs_field> TYPE ANY.
  ASSIGN structure-field TO <fs_field>.
  IF sy-subrc <> 0.
      " Handle error
  ENDIF.
  
  
  Check Structure Definition: Verify that the structure is defined correctly and that the field you are trying to access exists within that structure.
  
  
  Debugging: Use debugging tools to step through the code and check the values and types of the variables involved in the assignment. This can help identify where the mismatch or error occurs.
  
  
  Use of ASSIGN Statement: Ensure that you are using the ASSIGN statement correctly. The syntax should be as follows:
  ASSIGN <structure> TO <fs_field>.
  
  
  Related Information:
  
  
  Field Symbols: Field symbols in ABAP are placeholders that can point to any data object. They are defined using the FIELD-SYMBOLS statement and are assigned using the ASSIGN statement.
  
  
  Structures: Structures in ABAP are user-defined data types that can contain multiple fields of different data types. They are defined using the TYPES statement.
  
  
  Error Handling: Always check the sy-subrc system variable after an ASSIGN statement to determine if the assignment was successful. If it is not zero, handle the error appropriately.
  
  
  By following these guidelines, you should be able to resolve the RSD_GEO309 error and ensure that your assignments between structures and field symbols are successful.