How To Fix SALV_X_API027 - Field &1 has no elementary ABAP type

SAP Error Message - Details

• Message type: E = Error

• Message class: SALV_X_API - Messages for ALV API exceptions

• Message number: 027

• Message text: Field &1 has no elementary ABAP type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_X_API027 - Field &1 has no elementary ABAP type ?

  The SAP error message SALV_X_API027 indicates that a field in the context of the SAP ALV (ABAP List Viewer) has been defined without an elementary ABAP type. This typically occurs when you are trying to display a field in an ALV grid or list that does not have a valid data type recognized by ABAP.
  Cause:
  
  Non-Elementary Data Type: The field you are trying to use in the ALV is either a complex type (like a structure or table) or has not been defined properly in the data dictionary.
  Field Definition Issues: The field might be defined in a way that is not compatible with ALV, such as being a reference type or a field that is not part of a structure with a defined elementary type.
  Incorrect Field Mapping: If you are mapping fields from a data source to the ALV output, and one of the fields does not have a corresponding elementary type, this error can occur.
  
  Solution:
  
  Check Field Definition: Ensure that the field you are trying to display has an elementary ABAP type. You can do this by checking the data dictionary (SE11) for the field's definition.
  Modify Data Structure: If the field is part of a structure, ensure that all fields in that structure are of elementary types. If necessary, create a new structure that only includes fields with elementary types.
  Use Compatible Types: If you are using a reference type or a complex type, consider converting it to an elementary type before passing it to the ALV.
  Field Mapping: Review the mapping of fields to ensure that all fields being passed to the ALV are correctly defined and compatible with ALV requirements.
  Debugging: If you are unsure which field is causing the issue, you can debug the program to identify the specific field that is leading to the error.
  
  Related Information:
  
  Elementary Types in ABAP: These include types like CHAR, NUMC, INT, FLOAT, etc. Ensure that the fields you are using in your ALV are of these types.
  ALV Documentation: Refer to the SAP documentation on ALV for more details on how to properly define and use fields in ALV reports.
  Data Dictionary (SE11): Use transaction SE11 to check the definitions of the fields and structures you are working with.
  
  By following these steps, you should be able to resolve the SALV_X_API027 error and successfully display your data in the ALV.