Scenario
The user tries to use ${customer} to show recipient's email address in an email but it is not showing any value.
Solution
1. Navigate to Documents > Templates > Email Templates
2. Email Template: Click Edit
3. Template:
4. Click Source
Text Editor Box: Enter <div><#if transaction.email?has_content>Requester: ${transaction.email </#if></div>
Note: The Requester can be replaced according to your preference.
5. Click Save