How To Fix CMM_MTMCDS841 - Invalid FX rate (mrkt to doc. crcy); nominator or denominator is zero

SAP Error Message - Details

• Message type: E = Error

• Message class: CMM_MTMCDS - Messages in CDS Views for Mark-to-Market Reporting

• Message number: 841

• Message text: Invalid FX rate (mrkt to doc. crcy); nominator or denominator is zero

What causes this issue?

An inconsistency occurred in the versioned pricing data. A fixed
exchange rate is defined for the conversion from the market currency to
the document currency but its nominator or denominator has a value of 0.

System Response

Cannot evaluate the price.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMM_MTMCDS841 - Invalid FX rate (mrkt to doc. crcy); nominator or denominator is zero ?

  The SAP error message CMM_MTMCDS841 indicates that there is an issue with the foreign exchange (FX) rate being used in a transaction. Specifically, the error states that either the nominator or the denominator of the FX rate is zero, which makes the rate invalid for conversion purposes. This typically occurs in the context of financial transactions where currency conversion is required.
  Causes:
  
  Missing Exchange Rate: The exchange rate for the currency pair involved in the transaction may not be defined in the system.
  Zero Rates: The exchange rate might be set to zero, either in the configuration or due to a data entry error.
  Incorrect Currency Configuration: The currencies involved may not be properly configured in the system, leading to issues in rate retrieval.
  Data Entry Errors: There may be errors in the transaction data, such as incorrect currency codes or amounts.
  
  Solutions:
  
  
  Check Exchange Rate Configuration:
  
  Go to the transaction code OB08 (Maintain Exchange Rates) and verify that the exchange rates for the relevant currency pair are correctly defined and not set to zero.
  Ensure that the rates are valid for the date of the transaction.
  
  
  
  Review Currency Settings:
  
  Check the currency settings in the relevant master data (e.g., vendor, customer, or material master) to ensure that the currencies are correctly assigned.
  
  
  
  Validate Transaction Data:
  
  Review the transaction that triggered the error to ensure that all currency-related fields are populated correctly and that there are no typos or incorrect entries.
  
  
  
  Check for Updates:
  
  If the exchange rates are maintained through an external source (like a bank or financial service), ensure that the latest rates have been updated in the system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on handling foreign exchange rates and related configurations.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OB08 for maintaining exchange rates, FB03 for viewing document details, and FBL1N or FBL5N for vendor/customer line items.
  Currency Types: Understand the different currency types in SAP (e.g., document currency, local currency, and group currency) and how they interact in transactions.
  SAP Notes: Check for any SAP Notes related to this error message for potential patches or updates that may resolve the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the error message CMM_MTMCDS841 in your SAP system.