How To Fix TU012 - Portion &1 does not exist

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 012

• Message text: Portion &1 does not exist

What causes this issue?

The record you have specified does not exist in the database.
If you created this record in a previous step, the record may be
missing for one of the following reasons:
The update process is not yet completed.
The update process was terminated.

System Response

How to fix this error?

Check your entries.
If the update process is delayed, wait until the update of the relevant
record is completed.
If the update process was canceled, determine the reason for this.

Error message extract from SAP system. Copyright SAP SE.