How To Fix AY166 - Depreciation simulation data was already copied - system error

SAP Error Message - Details

• Message type: E = Error

• Message class: AY - Deprec. simulation - maint. module (AIPS) /gen. master data

• Message number: 166

• Message text: Depreciation simulation data was already copied - system error

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AY166 - Depreciation simulation data was already copied - system error ?

  The SAP error message AY166, which states "Depreciation simulation data was already copied - system error," typically occurs during the process of running depreciation simulations in the Asset Accounting (FI-AA) module. This error indicates that the system has detected that depreciation simulation data has already been copied for the asset in question, and it is unable to proceed with the operation.
  Causes:
  
  Duplicate Simulation Data: The most common cause is that the depreciation simulation data for the asset has already been processed or copied, leading to a conflict when trying to perform the operation again.
  System Configuration Issues: There may be configuration settings in the Asset Accounting module that are not set up correctly, leading to unexpected behavior.
  Data Integrity Issues: There could be inconsistencies or corruption in the asset master data or related tables.
  User Authorization: Sometimes, insufficient user permissions can lead to errors when trying to access or modify simulation data.
  
  Solutions:
  
  Check Existing Simulation Data: Review the asset in question to see if there is existing simulation data. You can do this by navigating to the asset master record and checking the depreciation simulation section.
  Delete or Reset Simulation Data: If you find that simulation data exists and is causing the error, you may need to delete or reset this data. This can typically be done through transaction codes like AS02 (Change Asset) or through specific reports that allow you to manage simulation data.
  Run the Simulation Again: After ensuring that there is no conflicting simulation data, try running the depreciation simulation again.
  Check Configuration Settings: Review the configuration settings in the Asset Accounting module to ensure that everything is set up correctly. This may involve consulting with your SAP Basis or FI-AA configuration team.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  User Authorization: Ensure that the user has the necessary authorizations to perform depreciation simulations. If not, work with your security team to grant the required permissions.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as AS01 (Create Asset), AS02 (Change Asset), and AS03 (Display Asset) for managing asset data.
  SAP Documentation: Refer to SAP Help documentation for Asset Accounting for detailed information on depreciation simulation processes.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP support team or consult with SAP directly for further assistance.