How To Fix WRF_APC816 - Enter different column position values (assortment type, hier. node)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 816

• Message text: Enter different column position values (assortment type, hier. node)

Self-Explanatory Message

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• What is the cause and solution for SAP error message WRF_APC816 - Enter different column position values (assortment type, hier. node) ?

  Certainly! Here's a detailed explanation for the SAP error message WRF_APC816:
  
  SAP Error Message: WRF_APC816
  Message Text:
  
  Enter different column position values (assortment type, hier. node)
  
  Cause
  This error occurs in SAP Advanced Planning and Optimization (APO), specifically in the Demand Planning (DP) or Supply Network Planning (SNP) modules when working with assortment types and hierarchy nodes in the planning book or data views.
  The message indicates that the system has detected duplicate or identical column position values for the combination of assortment type and hierarchy node in the planning book or the data view layout. In other words, the columns that represent these combinations are not uniquely positioned, causing ambiguity in data display or processing.
  This can happen due to:
  
  Incorrect or duplicate configuration of column positions in the planning book.
  Overlapping or conflicting assignment of hierarchy nodes and assortment types in the column layout.
  Data inconsistencies or errors in the master data related to assortment types or hierarchy nodes.
  
  
  Solution
  To resolve the error:
  
  
  Check Planning Book Configuration:
  
  Go to the planning book maintenance transaction (e.g., /SAPAPO/SDP94).
  Review the column layout settings.
  Ensure that each column representing a combination of assortment type and hierarchy node has a unique column position.
  Adjust the column positions so that no two columns share the same position value.
  
  
  
  Verify Assortment Types and Hierarchy Nodes:
  
  Check the master data for assortment types and hierarchy nodes.
  Make sure there are no duplicates or inconsistencies.
  Validate that the hierarchy nodes assigned to assortment types are correct and unique.
  
  
  
  Rebuild or Refresh Planning Book:
  
  After correcting the column positions, save and activate the planning book.
  Refresh or reload the planning book in the planning view to ensure changes take effect.
  
  
  
  Check for Custom Enhancements or User Exits:
  
  If custom code or user exits are involved in generating the planning book layout, verify that they do not assign duplicate column positions.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  /SAPAPO/SDP94 – Planning Book Maintenance
  /SAPAPO/SDP91 – Data View Maintenance
  /SAPAPO/MC90 – Interactive Planning
  
  
  
  SAP Notes:
  
  Check for any SAP Notes related to WRF_APC816 or planning book layout issues in the SAP Support Portal.
  
  
  
  Documentation:
  
  SAP APO Demand Planning and SNP documentation on planning book and data view configuration.
  SAP Help Portal: Planning Book and Data View Configuration.
  
  
  
  Common Scenarios:
  
  This error often appears when users try to create or modify planning books with multiple assortment types and hierarchy nodes, especially in complex supply chain scenarios.
  
  
  
  
  If you continue to face issues after these steps, consider enabling detailed logging or debugging to trace how column positions are assigned during planning book generation.
  
  Summary:
  
  The WRF_APC816 error is caused by duplicate column position values for assortment type and hierarchy node combinations in the planning book. The solution is to ensure unique column positions in the planning book configuration and verify master data consistency.
  
  If you need help with specific steps or screenshots, please let me know!