Add dynamic expiration dates to in-app messages

Use liquid syntax to set a dynamic value for the expiration date of an in-app message.

You can now use liquid syntax to set the expiration date for an in-app message. Use event properties, profile attributes, snippets, and more. For example, if you want an in-app message to expire based when an online course is scheduled to start, you can use liquid syntax to set the expiration date to {{event.class_start_date}}.