How To Fix KM643 - You cannot select the currency key of the transaction currency

SAP Error Message - Details

• Message type: E = Error

• Message class: KM - Error messages for Profit Center Accounting

• Message number: 643

• Message text: You cannot select the currency key of the transaction currency

What causes this issue?

You cannot enter the currency key of the transaction currency if no
value fields in the transaction currency are contained in the planning
layout.

How to fix this error?

Delete your entry for the characteristic "Currency key" or add value
fields that use the transaction currency to your planning layout.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KM643 - You cannot select the currency key of the transaction currency ?

  The SAP error message KM643, which states "You cannot select the currency key of the transaction currency," typically occurs in the context of financial transactions or reporting where there is a mismatch or an issue with currency settings. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Currency Configuration Issues: The currency key being selected may not be compatible with the transaction currency defined in the system.
  Transaction Currency Mismatch: The currency key you are trying to select may not be allowed for the specific transaction type or document.
  Master Data Settings: The master data (like customer or vendor records) may not have the correct currency settings.
  Document Type Restrictions: Certain document types may have restrictions on the currencies that can be used.
  Customizing Settings: The system configuration in the customizing settings may not allow the selection of the specified currency.
  
  Solutions:
  
  Check Currency Settings: Verify the currency settings in the relevant master data (e.g., customer, vendor, or material master) to ensure they are correctly configured.
  Review Transaction Currency: Ensure that the transaction currency is correctly set and that you are not trying to select a currency that is not allowed for that transaction.
  Adjust Document Type Settings: If applicable, check the document type settings in the configuration to see if there are restrictions on currency selection.
  Consult with SAP Configuration: If you have access to SAP configuration, review the settings related to currencies in the Financial Accounting (FI) or Controlling (CO) modules.
  Use the Correct Currency Key: Make sure you are using the correct currency key that corresponds to the transaction currency.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like OB22 for currency settings) that can help you navigate to the necessary configuration areas.
  User Authorization: Ensure that you have the necessary authorizations to make changes to currency settings or to perform the transaction you are attempting.
  Documentation: Refer to SAP documentation or help files for detailed explanations of currency handling in SAP.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in financial modules.