Rich Message
This page describes where to use and find a rich message type
What is a rich message?
A rich message is a card type message that can include lots of different multimedia elements such as titles, text, images, links and more.
Rich messages can be used within your OpenDialog chatbot in various scenarios to enhance user engagement and improve the overall user experience.
When to use rich messages
Rich messages are great for when you need to convey information that is better communicated through visuals, such as product images. For guiding users through complex processes or workflows, rich messages can break down steps visually and provide clear instructions at each stage. When users need to make choices or selections from a list of options, buttons or quick reply options, rich messages can streamline the process and make it more user-friendly.
Rich messages allow for more control around message content and how it is displayed to the user. They can be thought of like 'card' style messages and contain any of the following elements in combination:
Title
Subtitle
Text
Image
Buttons

How to create a rich message
Via the custom message in Message Editor
Navigate to the Message Editor and create a Custom Message. Select rich-message from the message type drop down menu and the XML Snippet field will automatically be populated with a code template.
Fill in the template with the properties of your particular message and when you are happy with it make sure to save your message and test it in the Test Preview chat window.

Open your OpenDialog application
Select the Scenario that you wish to edit
Select Design from the left hand panel and select Messages
Go into the message that you want to add a message block to
Add a 'Custom Message' block
Select 'rich-message' from the drop down
Add in your own text to the fields you want to customise
To preview your message, go to the Preview section
XML Snippet
Basic snippet:
More advanced snippet:
Properties
<title> Write the text here that you would like to see as your rich message title
<subtitle> Write the text here that you would like to see as your rich message subtitle
<text> Write the text you would like to display in your message here. Emojis can be inserted here too. For instructions see no-code text message
<image> Write in here the link to the image that you would like to see displayed in your rich message
If you change your mind and select a different message type after generating the XML code, the new message code will be appended in the same window so make sure to delete the old message code.
How to use a rich message
Saving a message: Always remember to hit 'Save Message' before closing or navigating away from the edit screen.
How to construct a rich message
When structuring a message, you are able to use multiple different message blocks together to create the message that you are looking for. However, when it comes to ordering and structing these, there are some rules that need to be followed. To learn more about this, please head to the Constructing Messages page for more information.
For all message types, a key element to take into consideration is Accessibility, especially for messages that include customisation with multimedia types such as buttons, images and links. For all information on accessibility within OpenDialog, please click here.
Making Rich Messages Expandable
Rich messages support two independent types of expansion:
Message Expand: Collapses the entire message bubble (including image, subtitle, text, buttons, links)
Text Expand: Collapses only the body text within the message
You can use one or both depending on your needs.
Expandable Attributes
expandable-message
Set to "true" to enable whole message expansion
Yes (to enable message expand)
expandable-message-height
Visual height for collapsed message bubble (e.g., "3em")
Required when expandable-message="true"
expandable-text
Set to "true" to enable text expansion
Yes (to enable text expand)
expandable-text-height
Visual height for collapsed text (e.g., "2em")
One of height OR chars required
expandable-text-chars
Character limit for collapsed text (e.g., "240")
One of height OR chars required
XML Examples
Message expand only:
Text expand only:
Both message and text expand:
Expansion Behavior
When both message expand and text expand are enabled, expansion works in stages:
Initial (both collapsed)
Title and "Read more..." link only. Image is included in height calculation.
Message expanded, text collapsed
Title, subtitle, image, buttons, links visible. Body text shows collapsed with its own "Read more..." link.
Fully expanded
All content visible including full body text.
Images are included in the height calculation for message expand. The image remains fully visible when the message is expanded.
Best Practices
Show at least the title when message is collapsed
For text within rich messages, use a minimum of 2-4em height
Consider using message expand for lengthy rich messages with multiple elements
Use text expand when only the body text needs collapsing
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