You can add request participants through email by sharing the request. Customers in an organization can share the request when they raise them.
Anyone with access to the service desk can add request participants through email.
To add request participants through email:
Create a request from your email client.
Add the request participant’s email address to either the TO or CC fields.
Send the email request.
Request participants will receive an email notifying them that they are participating in the request depending on the project notification settings.