How To Fix FS870 - Internal error when determining tax amounts

FS870 - Overview

• Message type: E = Error

• Message class: FS - Messages from Tax Routines / Prenumbered Checks

• Message number: 870

• Message text: Internal error when determining tax amounts

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FS870 - Internal error when determining tax amounts ?

  The SAP error message FS870 ("Internal error when determining tax amounts") typically occurs during the processing of financial transactions, particularly when the system encounters issues while calculating tax amounts. This error can arise due to various reasons, including configuration issues, missing data, or inconsistencies in the tax determination process.
  Causes of FS870 Error
  
  
  
  Configuration Issues: Incorrect or incomplete configuration in the tax settings can lead to this error. This includes issues with tax codes, tax calculation procedures, or tax jurisdiction settings.
  
  
  Missing Master Data: If the necessary master data (such as customer/vendor master records, material master records, or tax classification) is incomplete or missing, the system may not be able to determine the correct tax amounts.
  
  
  Inconsistent Data: Inconsistencies in the data, such as mismatched tax codes or incorrect account assignments, can trigger this error.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the tax calculation logic, they may not be