How To Fix KK371 - Derivation rules for model exist: model cannot be overwritten

SAP Error Message - Details

• Message type: E = Error

• Message class: KK -

• Message number: 371

• Message text: Derivation rules for model exist: model cannot be overwritten

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message KK371 - Derivation rules for model exist: model cannot be overwritten ?

  The SAP error message KK371 indicates that there are existing derivation rules for a particular model in the Controlling (CO) module, which prevents the model from being overwritten. This typically occurs when you attempt to change or delete a model that is currently in use or has dependencies defined in the system.
  Cause:
  
  Existing Derivation Rules: The model you are trying to overwrite has derivation rules associated with it. These rules dictate how costs or revenues are allocated and are essential for the model's functionality.
  Model in Use: The model may be actively used in various transactions or reports, making it necessary to maintain its integrity.
  Configuration Settings: Certain configuration settings in the SAP system may restrict changes to models that have been defined with derivation rules.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Review Derivation Rules:
  
  Navigate to the derivation rules associated with the model. You can do this through the SAP GUI by going to the relevant transaction (e.g., KEDR for derivation rules).
  Check if the rules are still needed or if they can be modified or deleted.
  
  
  
  Delete or Modify Derivation Rules:
  
  If the derivation rules are no longer required, you can delete them. Ensure that you have the necessary authorizations to perform this action.
  If you need to keep the rules but want to change the model, consider modifying the existing rules instead of deleting them.
  
  
  
  Check Model Usage:
  
  Ensure that the model is not being used in any active processes. If it is, you may need to complete or cancel those processes before making changes.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific model and derivation rules to understand the implications of any changes you plan to make.
  
  
  
  Seek Help from SAP Support:
  
  If you are unsure about the changes or if the issue persists, consider reaching out to SAP support or your internal SAP team for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KEDR (Derivation Rules) and KKS1 (Modeling) to navigate the system effectively.
  Authorization: Ensure you have the necessary authorizations to view and modify derivation rules and models.
  Testing Changes: Always test changes in a development or quality assurance environment before applying them to the production system to avoid unintended consequences.
  
  By following these steps, you should be able to address the KK371 error and successfully manage your models and derivation rules in SAP.