How To Fix /CCIS/TAX638 - Formula error: invalid something

/CCIS/TAX638 - Overview

• Message type: E = Error

• Message class: /CCIS/TAX -

• Message number: 638

• Message text: Formula error: invalid something

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.

Unfortunately, there isn't any extra information in this error notice.

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/CCIS/TAX638 - Details

• The SAP error message /CCIS/TAX638 Formula error: invalid something typically relates to issues in the calculation of taxes within the SAP system, particularly in the context of the SAP Convergent Charging (CC) or SAP Convergent Invoicing (CI) modules. This error can occur due to various reasons, including incorrect configuration, missing data, or issues with the tax calculation formulas.
  Possible Causes:
  
  Invalid Formula Configuration: The formula used for tax calculation may be incorrectly defined or may reference invalid fields or parameters.
  Missing or Incorrect Data: Required data for tax calculation (like tax codes, rates, or relevant master data) may be missing or incorrectly set up.
  Version Compatibility: The error may arise if there are compatibility issues between different versions of SAP components or if the system is not updated.
  Custom Code Issues: If there are custom developments or enhancements in the tax calculation logic, they may contain errors or bugs.
  
  Solutions:
  
  
  Check Formula Configuration:
  
  Review the tax calculation formulas