Update USE_CASES.md

sendgrid · Aug 21, 2018 · 406fc7c · 406fc7c
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Showing 1 changed file with 3 additions and 1 deletion.
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@@ -7,7 +7,9 @@ This documentation provides examples for specific use cases. Please [open an iss
 * [How to View Email Statistics](#email-statistics)
 
 <a name="transactional-templates"></a>
-# Transactional Templates
+# (LEGACY) Transactional Templates
+
+IF YOU ARE USING OUR NEW TEMPLATES, PLEASE SEE [THIS ISSUE](https://github.com/sendgrid/sendgrid-ruby/issues/301).
 
 For this example, we assume you have created a [transactional template](https://sendgrid.com/docs/User_Guide/Transactional_Templates/index.html). Following is the template content we used for testing.