How To Fix FF807 - Tax amount is negative

SAP Error Message - Details

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 807

• Message text: Tax amount is negative

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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Smart SAP Assistant

• What is the cause and solution for SAP error message FF807 - Tax amount is negative ?

  The SAP error message FF807, which states "Tax amount is negative," typically occurs during the processing of financial transactions, particularly when dealing with tax calculations in accounts payable or accounts receivable. This error indicates that the system has detected a negative tax amount, which is not permissible in standard tax processing.
  Causes:
  
  Incorrect Tax Configuration: The tax codes or tax rates may be incorrectly configured in the system, leading to negative tax calculations.
  Data Entry Errors: Manual entry errors in invoices or transactions can result in negative tax amounts.
  Credit Memos: If a credit memo is processed incorrectly, it may lead to a situation where the tax amount appears negative.
  Reversals: Reversing a transaction that has already been posted can sometimes lead to negative tax amounts if not handled properly.
  Custom Code Issues: If there are custom developments or enhancements in the system, they may inadvertently cause negative tax calculations.
  
  Solutions:
  
  Review Tax Configuration: Check the tax codes and rates in the system to ensure they are set up correctly. This includes verifying that the tax calculation methods are appropriate for the transactions being processed.
  Correct Data Entry: Review the transaction or invoice for any data entry errors. Ensure that the amounts entered are correct and that the tax codes applied are appropriate.
  Adjust Credit Memos: If the error is related to a credit memo, review the memo for accuracy and ensure that it is processed correctly.
  Transaction Reversal: If the error is due to a reversal, ensure that the reversal is done correctly and that it does not lead to negative tax amounts.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling tax-related errors.
  Debug Custom Code: If there are custom developments, review the code to identify any logic that may lead to negative tax calculations.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the FF807 error. SAP frequently updates its knowledge base with solutions for common errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB60 (Enter Incoming Invoice), FB70 (Enter Outgoing Invoice), and others that may be involved in the transaction process.
  Tax Reporting: Ensure that tax reporting requirements are met and that the system is configured to handle various tax scenarios correctly.
  User Training: Provide training for users on proper data entry and transaction processing to minimize errors that could lead to negative tax amounts.
  
  If the issue persists after following these steps, it may be necessary to consult with your SAP support team or a technical consultant for further investigation.