Status does not allow cost distribution: &1

What causes this issue?

The object status does not permit cost postings. Examples of such
statuses are 'opened' and 'completed'.

System Response

The affected objects are excluded from processing.

How to fix this error?

Check the object statuses.

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.