How To Fix ACM020 - Duplicate aspects defined in aggregate &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ACM - Message-Class for all ACM functions/exceptions

• Message number: 020

• Message text: Duplicate aspects defined in aggregate &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACM020 - Duplicate aspects defined in aggregate &1 ?

  The SAP error message ACM020 "Duplicate aspects defined in aggregate &1" typically occurs in the context of the SAP Asset Accounting (FI-AA) module, particularly when dealing with aggregates in the context of asset management. This error indicates that there are duplicate aspects defined for a specific aggregate, which can lead to inconsistencies in data processing.
  Cause:
  The error is usually caused by:
  
  Duplicate Entries: There are multiple entries for the same aspect in the configuration of the aggregate.
  Incorrect Configuration: The configuration settings for the aggregate may have been incorrectly set up, leading to the same aspect being defined more than once.
  Data Migration Issues: If data has been migrated from another system, it may have introduced duplicates that were not present in the original system.
  
  Solution:
  To resolve the ACM020 error, you can follow these steps:
  
  
  Check Aggregate Configuration:
  
  Go to the configuration settings for the aggregate in question (transaction code OAYD or similar).
  Review the aspects defined for the aggregate and look for any duplicates.
  Remove or correct any duplicate entries.
  
  
  
  Review Customizations:
  
  If there are any custom developments or enhancements related to asset management, review them to ensure they are not introducing duplicates.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the asset data to identify any inconsistencies that may be causing the error.
  Use transaction codes like OAM1 or OAM2 to check and correct asset master data.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP you are using for any known issues or additional guidance.
  
  
  
  Testing:
  
  After making changes, test the configuration to ensure that the error no longer occurs and that the aggregates are functioning as expected.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the configuration and correcting any duplicates, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAYD (Define Aggregates), OAM1 (Create Asset Master Record), and OAM2 (Change Asset Master Record).
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Help Portal for detailed information on Asset Accounting and aggregates.
  
  By following these steps, you should be able to identify and resolve the cause of the ACM020 error in your SAP system.