Scrap for object & could not be assigned

What causes this issue?

<DS:GLOS.3526C48DAFAB52B9E10000009B38F974>Scrap</> for replenishment
element & could not be assigned.

System Response

The costs for the replenishment element cannot be fully distributed
during a further cost distribution run.

How to fix this error?

Create a separate WBS element for the <DS:TRAN.PEG04>assignemnt of
scrap</>.

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.