How To Fix FF799 - System error: &

SAP Error Message - Details

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 799

• Message text: System error: &

What causes this issue?

When calculating the taxes, an internal error occurred. The name of the
routine is stated in the error message.
If the error comes from the Routine LTAX1U04, the cause can be an
incorrectly maintained tax code. Check whether the tax code is
maintained correctly, in particular that the base values are defined
for the individual levels so that actual values can also be calculated.
Example of an incorrect definition:
Tax category Tax rate Level From level
Base amount 100 000
Output tax 10.000 300 200
Since a tax rate does not exist for level 200, the output tax cannot be
calculated.

System Response

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

How to fix this error?

Before you attempt to analyze the program, check the tax calculation
procedure you used for accuracy. Check whether the tax code used is
allocated to the correct tax type and whether a valid base value is
allocated to this tax type.
If you cannot solve the problem, consult your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FF799 - System error: & ?

  The SAP error message FF799, which states "System error: &", is a generic error message that indicates a system-level issue. This error can occur in various contexts, often related to financial transactions, such as payment processing or bank statement processing in the SAP Financial Accounting (FI) module.
  Possible Causes:
  
  Configuration Issues: Incorrect configuration in the payment processing settings or bank account settings.
  Data Inconsistencies: Missing or inconsistent data in the relevant master data (e.g., vendor, customer, or bank master data).
  System Bugs: There may be bugs or issues in the SAP system that need to be addressed through patches or updates.
  Authorization Issues: Lack of proper authorizations for the user trying to perform the transaction.
  Technical Issues: Problems with the underlying database or application server, such as connectivity issues or resource limitations.
  
  Solutions:
  
  Check Configuration: Review the configuration settings related to payment processing and ensure they are set up correctly.
  Validate Master Data: Ensure that all relevant master data is complete and accurate. Check for missing bank details or incorrect account assignments.
  Review Logs: Check the system logs (transaction codes like SLG1) for more detailed error messages that can provide insights into the root cause.
  User Authorizations: Verify that the user has the necessary authorizations to perform the transaction.
  System Updates: Ensure that the SAP system is up to date with the latest patches and updates. Consult with your SAP Basis team if necessary.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it appears to be a bug or a more complex system issue.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may want to look into transaction codes like F110 (Automatic Payment Transactions) or FF67 (Import Bank Statement).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to this error.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  Conclusion:
  Since FF799 is a generic error message, the specific resolution may vary based on the context in which it occurs. It is essential to gather as much information as possible about the circumstances leading to the error to effectively troubleshoot and resolve the issue.