How To Fix IST_EBS120 - The taxes for doc. &1 are incompatible with the internally calc. taxes

SAP Error Message - Details

• Message type: E = Error

• Message class: IST_EBS - Interface Between IS-T 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?

Conrol information was transferred from the external system at document
level. It does not match the values calculated internally.

System Response

In order to maintain data consistency, the documents in question are
<ZH>not </>posted.

How to fix this error?

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

Procedure for System Administrators

If necessary, define a customer-specific function module for event T405
that deals with any rounding differences.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IST_EBS120 - The taxes for doc. &1 are incompatible with the internally calc. taxes ?

  The SAP error message IST_EBS120 indicates that there is a discrepancy between the taxes calculated internally by the system and the taxes that have been entered or imported for a specific document (identified by the document number &1). This error typically arises in the context of electronic bank statement processing or when dealing with tax-related transactions.
  Causes:
  
  Incorrect Tax Configuration: The tax codes or rates configured in the system may not match the tax amounts that are being imported or entered for the document.
  Manual Entry Errors: If taxes are manually entered, there may be typographical errors or incorrect values.
  Changes in Tax Rates: If tax rates have changed and the document was created before the change, there may be a mismatch.
  Document Type Issues: The document type may not be compatible with the tax settings in the system.
  Currency Differences: If the document currency differs from the company code currency, it may lead to tax calculation discrepancies.
  
  Solutions:
  
  Verify Tax Codes: Check the tax codes used in the document and ensure they are correctly configured in the system. Compare the tax amounts with the internal calculations.
  Recalculate Taxes: If the document allows, try to recalculate the taxes to see if the system can align the internal calculations with the entered values.
  Check Configuration: Review the tax configuration settings in the SAP system (transaction codes like OB40 for tax codes, OBYZ for tax determination) to ensure they are set up correctly.
  Correct Manual Entries: If taxes were entered manually, verify and correct any discrepancies in the tax amounts.
  Update Tax Rates: If there have been recent changes to tax rates, ensure that the system is updated accordingly and that all relevant documents are adjusted.
  Consult Documentation: Review SAP documentation or notes related to tax processing and electronic bank statements for any specific guidance or updates.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB03 (Display Document), OB40 (Maintain Tax Codes), and OBYZ (Maintain Tax Determination).
  SAP Notes: Check for any SAP Notes that may address this specific error or provide patches or updates.
  User Exits and BAdIs: If custom logic is involved in tax calculation, review any user exits or BAdIs that may affect tax processing.
  Testing: If changes are made, conduct thorough testing in a development or quality assurance environment before applying changes to production.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in tax configuration and electronic bank statements.