How can I change the order of my ticket fields?
You can reorder ticket fields in the ticket forms page. Click the field you want to move and manually drag it up or down to the desired position on the form.
Custom fields respect this order in the form of your help center, but they always display below the system fields. When you view a ticket on your instance, Brand, Requester, Form, and Tags remain on top of the custom fields. If enabled, Followers and Sharing will also display on top of the custom fields.
If you want to reorder the fields in the contact form of the Web Widget (Classic), see the article: Can I reorder custom ticket fields on my contact form?