How To Fix TU360 - Extrapolation not executable as period up until &1 already billed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 360

• Message text: Extrapolation not executable as period up until &1 already billed

What causes this issue?

To create a budget billing plan manually, you first have to start
billing extrapolation.
In this case, extrapolation is not possible, because billing documents
already exist up to &V1&.

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?

Invoice the existing billing documents.
Create the new budget billing plan.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.