Customizing Emails Based on Different Registrant Factors/Values

Overview

Email can be sent from the Certain platform with content that changes based on a registrant's answer to a form question.
The Certain platform achieves this by using Display rules.

Create separate Custom Blocks to hold the data you want to display.
Create one Custom Block for each Subject if you want the subject to be different.
Create one Custom Block for each Body of information that applies specifically to the Answer made.

Create a separate display rule for each Block, with a logic that triggers off of the Question answer.
Go to Plan>Event Set-up>Content Display.
Go to the Content Blocks menu on the left.
Click on the Add New button to add a new content block.
Enter the Subject and Body text.
Then save.
Go to Plan>Event Set-up>Content Display.
Then go to the Display Rules menu on the left.
Click on the Add New button to add a new display rule.
Select Apply ONLY if these conditions are met option.
Then enter the condition that will trigger the content block.
Select the content block you want to display under the Rule Action section.
Then save.

Create an Email Template.
Append all of the Subject Display rules to the Subject of the Email.
You would want the Name of these display rules to be short to ensure you could append them all to the subject.
Create the email with any banner images or general wording that would work for every registrant.
Append the Display rules that contain the unique info you want to show based on the Answer made.
Send the Email via a Custom Reg Status or from the Form's Confirmation page.