How To Fix WRF_APC269 - Field catalog does not match structure &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 269

• Message text: Field catalog does not match structure &1

Self-Explanatory Message

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• What is the cause and solution for SAP error message WRF_APC269 - Field catalog does not match structure &1 ?

  SAP Error Message:
  
  WRF_APC269 Field catalog does not match structure &1
  
  Cause
  This error occurs when there is a mismatch between the field catalog and the structure it is supposed to represent in a report or ALV (ABAP List Viewer) grid display. Specifically, the field catalog (which defines the columns and their properties for an ALV report) does not correspond correctly to the data structure or internal table being used.
  Common reasons include:
  
  The field catalog references fields that do not exist in the data structure.
  The data structure has changed (fields added, removed, or renamed) but the field catalog was not updated accordingly.
  The field catalog is generated or maintained incorrectly, leading to inconsistencies.
  The program expects a certain structure but receives a different one.
  
  
  Solution
  
  
  Check the Field Catalog Definition:
  
  Verify that all fields listed in the field catalog exist in the data structure or internal table.
  Ensure the field names, data types, and lengths match exactly.
  
  
  
  Regenerate or Rebuild the Field Catalog:
  
  If the field catalog is generated dynamically (e.g., using REUSE_ALV_FIELDCATALOG_MERGE or similar function modules), regenerate it after any changes to the data structure.
  If the field catalog is hardcoded, update it to reflect the current structure.
  
  
  
  Verify the Data Structure:
  
  Check the structure or internal table passed to the ALV function/module.
  Make sure it matches the expected structure for which the field catalog was created.
  
  
  
  Debugging:
  
  Use the debugger to check the contents of the field catalog and the data structure at runtime.
  Identify which field(s) cause the mismatch.
  
  
  
  Consult SAP Notes:
  
  Sometimes, this error can be related to specific SAP versions or patches. Check SAP Notes for any known issues or fixes.
  
  
  
  
  Related Information
  
  Field Catalog: A table that defines the columns of an ALV report, including field names, column headers, output length, data types, and other display attributes.
  ALV (ABAP List Viewer): A tool used in SAP to display lists and reports with enhanced features like sorting, filtering, and layout management.
  Function Modules: Commonly used function modules to generate field catalogs include:
  
  REUSE_ALV_FIELDCATALOG_MERGE
  LVC_FIELDCATALOG_MERGE
  
  
  Structures and Internal Tables: The data passed to ALV must be consistent with the field catalog.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WRF_APC269 Field catalog does not match structure &1
  
  
  Cause
  Mismatch between field catalog and data structure (fields missing, renamed, or changed)
  
  
  Solution
  Verify and update field catalog and data structure to match; regenerate field catalog
  
  
  Checkpoints
  Field names, data types, lengths, dynamic generation of field catalog
  
  
  Tools
  Debugger, SAP Notes, ALV function modules
  
  
  
  
  If you provide the program or context where this error occurs, I can help you with more specific guidance.