How To Fix FC363 - Changing the currency in a live system can lead to fatal errors.

FC363 - Overview

• Message type: E = Error

• Message class: FC - FI configuration error messages

• Message number: 363

• Message text: Changing the currency in a live system can lead to fatal errors.

Before you continue, it is important that you make note of the follow-on
note: This transaction can bring about severe losses if you ignore this
note.

What causes this issue?

You are about to change the additional local currencies for the company
code. If, however, transactional data exists in the system / target
system of the Customizing transport, this leads to inconsistencies in
the currencies.

System Response

Depending on your settings, this may cause a system standstill. For
example, follow-on processes reference existing data that does not
conform to the changed settings, and therefore cannot be posted!
Other effects are also possible (for example, unexplainable exchange
rate differences, no means of reconciling the data).

How to fix this error?

If changes are necessary, refer to SAP Note 39919.

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 FC363 - Changing the currency in a live system can lead to fatal errors. ?

  The SAP error message FC363, which states "Changing the currency in a live system can lead to fatal errors," typically occurs when there is an attempt to change the currency settings in a live SAP system. This is a critical error because changing the currency can have significant implications for financial reporting, data integrity, and system functionality.
  
  Cause:
  
  Currency Change Attempt: The error is triggered when a user tries to change the currency settings (e.g., company code currency, controlling area currency) in a system that is already live and operational.
  Data Integrity Risks: Changing the currency can lead to inconsistencies in financial data, as historical transactions are recorded in the original currency.
  System Configuration: The system is designed to prevent such changes in a live environment to protect the integrity of financial data.
  
  
  Solution:
  
  
  Avoid Currency Changes in Live Systems: The best practice is to avoid changing currency settings in a live system. If a currency