How To Fix GLE_MCA639 - Default exchange rate type 'M' is used as "Source Exchange Rate Type"

SAP Error Message - Details

• Message type: E = Error

• Message class: GLE_MCA - Multicurrency Accounting

• Message number: 639

• Message text: Default exchange rate type 'M' is used as "Source Exchange Rate Type"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message GLE_MCA639 - Default exchange rate type 'M' is used as "Source Exchange Rate Type" ?

  The SAP error message GLE_MCA639 indicates that the system is using the default exchange rate type 'M' (which stands for "Monthly" exchange rates) as the "Source Exchange Rate Type" in a context where it may not be appropriate. This typically occurs in the context of currency translation or when dealing with foreign currency valuations in financial documents.
  Cause:
  
  Configuration Issue: The system may be configured to use the default exchange rate type 'M' for a transaction or process that requires a different exchange rate type (e.g., 'B' for "Bank" rates or 'G' for "Historical" rates).
  Missing Exchange Rate Type: The required exchange rate type may not be defined or may not have valid rates for the currency pair involved.
  Transaction Type: The transaction being processed may not support the use of the 'M' exchange rate type, leading to this error.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the transaction code OB08 to check the exchange rate types and ensure that the necessary exchange rates are maintained for the required currency pairs.
  Verify the configuration settings in the relevant financial modules (e.g., Financial Accounting, Controlling) to ensure that the correct exchange rate types are being used.
  
  
  
  Change Exchange Rate Type:
  
  If the process allows, change the exchange rate type to one that is appropriate for the transaction. This can often be done in the transaction where the error occurs or in the configuration settings.
  
  
  
  Maintain Exchange Rates:
  
  If the required exchange rate type is missing, you may need to maintain the exchange rates for that type. This can be done in the same transaction (OB08) by entering the necessary rates for the relevant currency pair.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team to understand the specific requirements for the transaction you are working with.
  
  
  
  Testing:
  
  After making changes, test the transaction again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Exchange Rate Types: In SAP, different exchange rate types can be defined for various purposes, such as daily rates, monthly rates, or historical rates. Understanding the purpose of each type is crucial for correct financial reporting.
  Currency Translation: This error may arise during currency translation processes, such as during the closing of financial periods or when generating financial statements in different currencies.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  If the issue persists after following these steps, it may be beneficial to engage with your SAP support team or consult with an SAP expert for further assistance.