Delete a scheduled change for a segment
Delete a scheduled change before its execution date, so that its instructions are never applied to the segment.
Deleting a change with a failed status removes it from the segment’s scheduled changes. Its instructions were not applied.
The caller must be allowed to update scheduled changes on the segment.
If an approval request scheduled the change, deleting the change also terminates that request, so it cannot be applied again. Declining the request is only an option while it is still awaiting review. Once it is applied, its instructions belong to a scheduled change, and this endpoint is how to stop them.
Returns 409 if the scheduled change is already being applied or has already run.