How To Fix TR_AUSL012 - Display only (delivery &1 already confirmed)

SAP Error Message - Details

• Message type: E = Error

• Message class: TR_AUSL - Software Delivery Composer Messages

• Message number: 012

• Message text: Display only (delivery &1 already confirmed)

What causes this issue?

You cannot change delivery &V1&, since it has already been completed
(status <ZH>Confirmed</>) and may already have been imported into
customer systems.

System Response

Display mode is used.

How to fix this error?

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.