How To Fix TU242 - You cannot change budget billing to negative amount &1 &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 242

• Message text: You cannot change budget billing to negative amount &1 &2

What causes this issue?

You have tried to change a budget billing request amount (debit entry
procedure) in a budget billing payment amount (credit procedure).
However, this is not possible because you cannot change the property of
debit or credit items for posted FI-CA documents.

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?

Change the amount to positive or zero.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.