How To Fix WXP624 - Basic characteristic &1 must be the key field for break-down table &3

WXP624 - Overview

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 624

• Message text: Basic characteristic &1 must be the key field for break-down table &3

Self-Explanatory Message

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WXP624 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WXP624 Basic characteristic &1 must be the key field for break-down table &3
  
  
  Cause:
  This warning message occurs in SAP BW (Business Warehouse) or SAP BW/4HANA when defining or working with break-down tables (also known as navigation attributes or master data attributes) in InfoObjects or InfoProviders.
  
  The message indicates that the basic characteristic (denoted by &1) must be included as a key field in the break-down table (denoted by &3).
  In other words, the break-down table must have the basic characteristic as part of its primary key to ensure proper join and data integrity.
  If the basic characteristic is not a key field in the break-down table, the system cannot uniquely identify records or correctly link the break-down table to the master data table.
  
  
  Explanation:
  
  A break-down table is used to store additional attributes or texts related to a characteristic.
  The basic characteristic is the main characteristic