How do I display multi-select field values as bullet points?

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Question 

How do I display multi-select field values as a bulleted list using triggers? 

Answer 

Use the Liquid split filter to divide this comma-separated list into an array, then display the items in that array in a bulleted list. 

You can use the following Liquid statement in your trigger email body. Replace [field_id] with your desired field ID:

{% assign options = ticket.ticket_field_option_title_[field_id] | split: ", " %}
<ul>
  {% for member in options %}
    <li>{{ member }}</li>
  {% endfor %}
</ul>

The code above sets a variable, options, to be the value of the multi-select ticket field. It then splits this variable at each comma, providing an array of options instead of just a single-line list. 

In triggers, the line break is rendered in the email output and creates whitespace. When you implement this, place all the code on a single line.

{% assign options = ticket.ticket_field_option_title_[field_id] | split: ", " %}<ul>{% for member in options %}<li>{{ member }}</li>{% endfor %}</ul>

For more information, see Understanding Liquid markup and Zendesk Support.