How To Fix MQ644 - Chart/depr. &1 inv.support key &2 does not have a unique currency key

SAP Error Message - Details

• Message type: E = Error

• Message class: MQ - Messages for Euro Changeover Package

• Message number: 644

• Message text: Chart/depr. &1 inv.support key &2 does not have a unique currency key

What causes this issue?

Investment support key &V2& in chart of depreciation &V1& is assigned
to assets in different company codes which do not have the same
currency.
It is also possible that absolutely no company codes have been assigned
to chart of depreciation &V1& so that the system could not determine
any currency.

System Response

The maximum amount of the investment support key cannot be converted
automatically.

How to fix this error?

Maintain the amount manually after conversion. Note that the same
amount was previously used in different currencies. Check this again.
Check the investment support key in Asset Accounting Customizing using
transaction <DS:TRAN.OAI2>Check assistance measures</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MQ644 - Chart/depr. &1 inv.support key &2 does not have a unique currency key ?

  The SAP error message MQ644 indicates that there is an issue with the configuration of the chart of depreciation (CoD) and the associated currency keys in the system. Specifically, it means that the combination of the chart of depreciation and the depreciation area does not have a unique currency key assigned to it. This can lead to inconsistencies in financial reporting and asset accounting.
  Cause:
  
  Duplicate Currency Keys: The chart of depreciation and the depreciation area may have multiple currency keys assigned, which creates ambiguity in how values are reported.
  Configuration Issues: There may be a misconfiguration in the asset accounting settings, particularly in the definition of the chart of depreciation or the currency settings for the depreciation areas.
  Missing Entries: The required entries for the currency key in the configuration may be missing or incorrectly set up.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings for the chart of depreciation in the SAP system (Transaction code: OAVC).
  Verify that each depreciation area within the chart of depreciation has a unique currency key assigned.
  Ensure that the currency keys are correctly defined in the system.
  
  
  
  Adjust Currency Keys:
  
  If you find duplicate currency keys, you will need to adjust the settings to ensure that each combination of chart of depreciation and depreciation area has a unique currency key.
  You can do this by editing the relevant entries in the configuration.
  
  
  
  Review Depreciation Areas:
  
  Check the settings for the depreciation areas involved. Make sure that they are correctly configured to use the appropriate currency keys.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for detailed guidance on configuring charts of depreciation and currency keys.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error is resolved and that asset accounting functions correctly.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OAVC: Configuration of Chart of Depreciation
  OAYZ: Define Depreciation Areas
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Support: If the issue persists after checking the configuration, consider reaching out to SAP support or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the MQ644 error and ensure that your asset accounting is functioning correctly.