How To Fix FKK_EBS120 - The taxes for doc. &1 are incompatible with the internally calc. taxes

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_EBS - Interface between FI-CA and External Billing System

• Message number: 120

• Message text: The taxes for doc. &1 are incompatible with the internally calc. taxes

What causes this issue?

At the document level, the external system has transferred tax
information that differs from values calculated internally.

System Response

To ensure data consistency, the documents concerned are <ZH>not</>
posted.

How to fix this error?

Check the transferred tax data and/or the internal Customizing.

Procedure for System Administrators

In some cases, it is advisable to store a customer function module
specifically for event 2405 to counteract any rounding differences.
INCLUDE FICA_NA_CUST_2 OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKK_EBS120 - The taxes for doc. &1 are incompatible with the internally calc. taxes ?

  The SAP error message FKK_EBS120 indicates that there is a discrepancy between the taxes calculated internally by the system and the taxes that are specified in the document. This error typically occurs in the context of electronic bank statement processing or when dealing with financial documents that involve tax calculations.
  Cause:
  
  Tax Configuration Issues: The tax codes used in the document may not be configured correctly in the system. This can happen if the tax rates have changed or if the tax codes are not properly assigned to the relevant accounts.
  Document Inconsistencies: The document may have been created with incorrect tax information, or there may be missing tax information that is required for the internal calculations.
  Currency Differences: If the document involves multiple currencies, discrepancies in currency conversion rates can lead to differences in tax calculations.
  Customizations or Enhancements: Custom code or enhancements in the SAP system may interfere with the standard tax calculation logic, leading to mismatches.
  
  Solution:
  
  Check Tax Configuration: Review the tax codes and ensure that they are correctly configured in the system. This includes checking the tax rates, tax categories, and any relevant settings in the tax configuration.
  Review Document Details: Examine the document that triggered the error. Ensure that all tax-related fields are filled out correctly and that the tax codes used are appropriate for the transaction.
  Recalculate Taxes: If possible, try to recalculate the taxes for the document. This can sometimes resolve discrepancies if the internal calculations were based on outdated or incorrect information.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues related to tax calculations.
  Consult Documentation: Refer to SAP documentation or notes related to the error message for any specific guidance or known issues that may apply to your situation.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights based on the specific configuration and version of your SAP system.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like FB03 (Display Document) to view the document details and OB40 (Maintain Tax Codes) to check tax code configurations.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  User Forums: Consider checking SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.