Once the Email Campaign is created, users can set up an invitation mail with generic mail body and few fields configured within the mail body.
To send out Email invitations, follow the below steps:
Step 1 : Select a Campaign by clicking on the 'Expand' icon:
Step 2 : Click on 'Invitation Email':
Step 3 : A dialogue box will pop up. Edit the fields highlighted in yellow.
Step 4 : Clicking on 'Send Now' will send out the surveys.
For more details, refer to Distribute Surveys via Email.