SAP Message FC360 - Changing the currency in a live system can lead to errors

Before you continue, it is essential that you read this text carefully. You can cause practically irreparable damage in your system with thistransaction if you do not take heed of this warning. Diagnosis You are about to change the additional local currencies for the companycode. If transaction data exists in the system/target system of theCustomizing transport, this leads to inconsistencies in the currencies. System Response Depending on your settings, this may cause a system standstill. Forexample, follow-on processes reference existing data that does notconform to the changed settings, and therefore cannot be posted! Other effects are also possible (for example, unexplainable exchangerate differences, no means of reconciling the data, and so on). Procedure Contact SAP, if changes are really necessary.