Pre-populate ticket submission form
To create a prepopulated ticket, perform the following steps:
1) From the Service Desk web part (either from a user’s or supporter’s view), create a new ticket and fill it in as you like it to be prepopulated. As you fill in new fields, you will see the URL of the web page change.
2) Copy the URL of the web page.
4) This will lead users directly from the button or link to the form you have prepopulated and enable them to submit the ticket by filling in only a few fields.