How To Fix TU228 - Cannot delete BB plan &1 because you have entered a different doc. number

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 228

• Message text: Cannot delete BB plan &1 because you have entered a different doc. number

What causes this issue?

Budget billing plan cannot be deleted because at least one BB plan item
is entered in either a collective bill (ABWTP = S) or installment plan
(ABWTP = R).

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?

You must do one of the following:
Reverse the collective bill.
Reverse the installment plan.
Delete the budget billing plan.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.