How To Fix FKK_ID_BR308 - Incorrect assignment of tax calculation method

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_ID_BR - Message class for Brazil Withholding tax functionalities

• Message number: 308

• Message text: Incorrect assignment of tax calculation method

What causes this issue?

You are trying to assign a tax calculation method to a correction tax
code or catch up tax code. This is incorrect as you can only assign tax
calculation method to a supplement tax code and not to a correction tax
code or catch up tax code. A correction tax code or catch up tax code is
used internally for withholding tax calculation and you cannot assign a
tax calculation method to it.

System Response

System will not allow you to save your data.

How to fix this error?

Assign tax calculation method to a valid supplement tax code.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKK_ID_BR308 - Incorrect assignment of tax calculation method ?

  The SAP error message FKK_ID_BR308, which indicates "Incorrect assignment of tax calculation method," typically arises in the context of the SAP Convergent Charging (SAP CC) or SAP Contract Accounts Receivable and Payable (SAP FI-CA) modules. This error is related to the configuration of tax calculation methods and their assignment to specific business processes or transactions.
  Cause:
  
  Incorrect Configuration: The tax calculation method may not be correctly configured in the system. This could involve incorrect settings in the tax calculation procedure or the assignment of tax codes.
  Inconsistent Data: There may be inconsistencies in the master data or transaction data that lead to the system being unable to determine the correct tax calculation method.
  Missing Assignments: The tax calculation method may not be assigned to the relevant business transactions or document types.
  Version Mismatch: If there are multiple versions of tax calculation methods, the system may be trying to use an outdated or incorrect version.
  
  Solution:
  
  
  Check Configuration: Review the configuration settings for tax calculation methods in the SAP system. Ensure that the tax calculation methods are correctly defined and assigned to the relevant business processes.
  
  Navigate to the configuration settings in SPRO: Financial Accounting (New) -> Financial Accounting Global Settings (New) -> Tax on Sales/Purchases -> Basic Settings -> Define Tax Calculation Methods.
  
  
  
  Verify Tax Codes: Ensure that the tax codes used in the transactions are correctly defined and linked to the appropriate tax calculation methods.
  
  Check the tax code settings in SPRO: Financial Accounting (New) -> Financial Accounting Global Settings (New) -> Tax on Sales/Purchases -> Basic Settings -> Define Tax Codes.
  
  
  
  Review Master Data: Check the master data (e.g., customer/vendor master records) to ensure that the correct tax calculation methods are assigned.
  
  
  Test Transactions: Perform test transactions to see if the error persists. This can help identify if the issue is with specific transactions or a broader configuration issue.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to tax calculation methods for any specific guidance or updates that may be relevant to your version of SAP.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for FKK_ID_BR308 in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  OB40: For maintaining tax calculation procedures.
  OBYZ: For maintaining tax codes.
  
  
  Support: If the issue persists after checking the configuration and master data, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the FKK_ID_BR308 error in your SAP system.