Change/reverse not possible; shipmt. cost. doc. created at shipment st &1

What causes this issue?

If the shipment cost document was created after loading confirmation,
changes to loading details are not possible.

System Response

Error, no further processing.

How to fix this error?

Do one of the following to perform loading confirmation again.
If the shipment costing is fully transferred, reverse the
posting/transfer and delete the shipment cost document.
If shipment costing is not yet transferred, delete the shipment cost
document.

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.