How To Fix AH681 - You cannot change the currency for an amount already calculated

AH681 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 681

• Message text: You cannot change the currency for an amount already calculated

What causes this issue?

The amount in operand &v4& for &v1& has been calculated via billing
&v2& and updated. The amount was calculated with transaction currency
&v3&. This cannot be changed manually.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH681 - You cannot change the currency for an amount already calculated ?

  The SAP error message AH681, "You cannot change the currency for an amount already calculated," typically occurs in the context of financial transactions or postings where a currency change is attempted after calculations have already been performed. This can happen in various modules, such as Financial Accounting (FI) or Controlling (CO), when dealing with amounts that have already been processed or posted.
  
  Cause:
  
  Currency Change Attempt: The error is triggered when a user tries to change the currency of a document or transaction that has already been calculated or posted. This is often not allowed because it can lead to inconsistencies in financial reporting and calculations.
  Document Status: The document may be in a status that does not allow changes, such as being posted or completed.
  Configuration Settings: Certain configuration settings in SAP may restrict currency changes after certain operations have been performed.
  
  
  Solution:
  
  Check Document Status: Ensure that the document you are trying to modify