How To Fix /SAPAPO/OM_ERROR165 - Two entries in the list have the same number

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR -

• Message number: 165

• Message text: Two entries in the list have the same number

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR165 - Two entries in the list have the same number ?

  The SAP error message /SAPAPO/OM_ERROR165 indicates that there are two entries in a list that have the same number, which typically occurs in the context of SAP Advanced Planning and Optimization (APO) when dealing with master data or planning data. This error can arise in various scenarios, such as during the creation or modification of planning objects, like products, locations, or resources.
  Cause:
  
  
  Duplicate Entries: The most common cause of this error is the presence of duplicate entries in the data being processed. This could be due to:
  
  Manual data entry errors.
  Data import processes that do not check for existing entries.
  Incorrect configuration or settings in the system.
  
  
  
  Data Consistency Issues: If the system is not properly synchronized or if there are inconsistencies in the master data, it can lead to this error.
  
  
  Custom Development: If there are custom programs or enhancements that manipulate data, they might inadvertently create duplicates.
  
  
  Solution:
  
  
  Identify Duplicates: 
  
  Use transaction codes like /SAPAPO/OM or relevant reports to identify the entries that are causing the duplication.
  Check the relevant tables in the database to find duplicate entries.
  
  
  
  Remove or Correct Duplicates:
  
  If duplicates are found, you can either delete the unnecessary entries or correct them to ensure that each entry has a unique identifier.
  Ensure that any data import processes include checks for existing entries to prevent future duplicates.
  
  
  
  Data Validation: 
  
  Implement data validation rules in your data entry processes to prevent duplicates from being created in the first place.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to this error for any specific recommendations or patches that may address the issue.
  
  
  
  Testing: 
  
  After making corrections, test the process again to ensure that the error does not reoccur.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO that can help you manage and analyze master data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the /SAPAPO/OM_ERROR165 error and prevent it from occurring in the future.