How To Fix FKKINV159 - Definition of calculation rule for charges/discounts incomplete

FKKINV159 - Overview

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 159

• Message text: Definition of calculation rule for charges/discounts incomplete

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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FKKINV159 - Details

• The SAP error message FKKINV159 indicates that there is an issue with the definition of calculation rules for charges or discounts in the SAP system, specifically within the context of contract accounts receivable and payable (FI-CA). This error typically arises when the system cannot find a complete or valid calculation rule for processing charges or discounts during invoice processing.
  
  Cause:
  
  Incomplete Configuration: The calculation rules for charges or discounts may not be fully defined in the system. This could be due to missing entries in the configuration settings.
  Missing Condition Types: The necessary condition types for calculating charges or discounts may not be set up correctly or may be missing.
  Incorrect Assignment: The calculation rules may not be correctly assigned to the relevant business transactions or document types.
  Custom Development Issues: If there are custom developments or enhancements in the system, they may interfere with the standard calculation rules.
  
  
  Solution:
  
  
  Check Configuration:
  
  Navigate to the configuration settings for