Universal Containers has a process to allow an employee to submit a vacation request and route it to the employee's manager for approval. An employee attempted to submit a request but it could NOT be submitted.
How should the administrator troubleshoot this?

The data in the Schedule section of the change request is just to aid reviewers and implementers. No process logic is driven off of values in these fields.

Itil users don't have permission to move problems through their life cycles.

Which of the following is set as the default value for Category in Incident form?

Consider the Apex controller above, that is called from a Lightning Aura Component.
What is wrong with it?