How To Fix WZRE_LIST009 - Comparison is not possible. The assignment is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_LIST - Settlement Management - Lists

• Message number: 009

• Message text: Comparison is not possible. The assignment is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_LIST009 - Comparison is not possible. The assignment is not unique ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZRE_LIST009 - Comparison is not possible. The assignment is not unique
  
  Cause:
  This error typically occurs during the execution of a report or transaction where the system tries to perform a comparison or assignment operation but finds that the key or assignment used is not unique. In other words, the system expects a unique assignment (like a unique key or unique combination of fields) but encounters multiple entries or duplicates, making the comparison ambiguous or impossible.
  Common scenarios include:
  
  When the system tries to compare or assign values based on a key field that is supposed to be unique but contains duplicates.
  When a table or internal table used in the program has multiple entries with the same key fields.
  When a selection or join condition does not uniquely identify a record.
  
  
  Solution:
  To resolve this error, you need to ensure that the assignment or comparison is done on unique keys or that the data involved is unique. Here are some steps to troubleshoot and fix the issue:
  
  
  Check the Data for Duplicates:
  
  Identify the table or internal table involved.
  Check if the key fields used for comparison or assignment contain duplicate entries.
  Use transaction SE16/SE16N or SE11 to inspect the database table for duplicates.
  
  
  
  Adjust the Program Logic:
  
  Modify the selection or join conditions to ensure uniqueness.
  If working with internal tables, use SORT and DELETE ADJACENT DUPLICATES statements to remove duplicates before comparison.
  Use more fields in the key to make the assignment unique.
  
  
  
  Debug the Program:
  
  Use the ABAP debugger to find the exact point where the error occurs.
  Check the values of the variables or internal tables involved in the assignment.
  Identify why the assignment is not unique.
  
  
  
  Check Custom Code or Enhancements:
  
  If this error occurs in a custom report or enhancement, review the code for assumptions about uniqueness.
  Correct the logic to handle multiple entries or ensure uniqueness.
  
  
  
  Consult SAP Notes:
  
  Search for SAP Notes related to this error message or the specific transaction/report you are using.
  Sometimes SAP provides patches or corrections for known issues.
  
  
  
  
  Related Information:
  
  Message Class: WZRE_LIST
  Message Number: 009
  This error is often related to list processing or report generation where unique assignments are critical.
  Similar errors can occur in other contexts where unique keys are expected but not found.
  Understanding the data model and key fields involved is crucial to resolving this issue.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Non-unique assignment or comparison due to duplicate key entries in data or internal tables.
  
  
  Solution
  Ensure uniqueness by checking data, adjusting program logic, removing duplicates, and debugging.
  
  
  Related
  Check SAP Notes, message class WZRE_LIST, and review custom code or standard reports involved.
  
  
  
  
  If you provide the context (transaction, report, or program name) where this error occurs, I can help you with more specific guidance.