How can I change the info included in the notification subject?

Final question - when a applicant completes the form, i get the following
notification
textbox_sample0 textbox_sample1
​In live will this show the applicants full name, or can it?
Thank you so much for all the help
Aimi ​

That info is the one you submit, you may ensure the correct fields are included in the email subject by editing the email template, right beside the subject box you will find a pencil icon where you will be able to select which info from the form fields can be included: 

Try may try entering different info than the testing info and you should see how the submitted email updates the fields values. 

If you have any question, let us know.