To modify the invitation email message, start by opening the interview's details.
Click 'Edit' and choose 'Edit invitation message'.
Modify the message as you like, and once you are satisfied with the invitation message, click 'Save message'. Now you can invite your candidates to the interview!
If you wish to save the invitation message as a template for the interview, you can do so by choosing 'Save as a template'- button. You can see this button once you have modified the invitation message.
Please note that saved templates are only available for that specific interview. The changes won't apply to new interviews.