How To Fix FKK_CM020 - No function module exists for valuation rule &1

FKK_CM020 - Overview

• Message type: E = Error

• Message class: FKK_CM -

• Message number: 020

• Message text: No function module exists for valuation rule &1

Self-Explanatory Message

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FKK_CM020 - Details

• The SAP error message FKK_CM020 indicates that there is no function module available for the specified valuation rule. This error typically occurs in the context of contract accounts receivable and payable (FI-CA) when the system is trying to process a valuation rule that has not been properly defined or is missing the corresponding function module.
  
  Cause:
  
  Missing Function Module: The valuation rule specified in the error does not have an associated function module defined in the system.
  Incorrect Configuration: The valuation rule may not be correctly configured in the system, leading to the absence of the necessary function module.
  Custom Development: If the valuation rule is a custom one, the corresponding function module may not have been created or activated.
  Transport Issues: If the system has recently undergone a transport of configuration or custom code, the function module may not have been included or properly transported.
  
  
  Solution:
  
  
  Check Valuation Rule Configuration:
  
  Go to the configuration settings for the