How To Fix TU237 - You cannot change amount &2 in due item &1

TU237 - Overview

• Message type: E = Error

• Message class: TU - Billing/Scheduling/Budget Billing

• Message number: 237

• Message text: You cannot change amount &2 in due item &1

What causes this issue?

You have attempted to change the budget billing amount of a partially
paid budget billing item.
The budget billing item amount cannot be lower than the partial payment
made for this item.

System Response

The budget billing amount is automatically increased to the already paid
partial payment amount.

How to fix this error?

Procedure for System Administrators

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.

TU237 - Details

• The SAP error message TU237 ("You cannot change amount &2 in due item &1") typically occurs in the context of financial transactions, particularly when dealing with payment processing or invoice management. This error indicates that there is an attempt to change an amount in a due item that is not allowed, often due to system constraints or business rules.
  Causes:
  
  Locked Document: The document you are trying to change may be locked for editing due to its status (e.g., already posted, cleared, or in a closed period).
  Payment Terms: The payment terms associated with the due item may restrict changes to the amount.
  Document Type Restrictions: Certain document types may have restrictions on modifying amounts after a certain point in the process.
  Accounting Period: If the accounting period is closed, changes to amounts may not be permitted.
  Configuration Settings: Custom configurations in the SAP system may prevent changes to certain financial documents.
  
  Solutions:
  
  Check Document Status: Verify the