How to create popup message?

Are you sure you want to ask your customer how they are paying before they finished ordering?

You can have a Ticket Note popup automatically upon ticket creating, but anything that will be entered will have to be manually entered. It may be possible to use GraphQL to automatically input into the Ticket Note field.

If you use Ticket Tag’s, that may be easier to automatically information. But you will not be able to view ticket tags on the default Ticket Explorer screen. You can make your own Ticket Explorer screen. Here is a link to get you started: