Multiple-Select Option Touchpoint Parameter
The multiple-select option input appears as a list of check boxes that the user can select.
Since the user can choose more than one option, the value(s) are usually queried as a list. See the Variable Details for more information about the default format. In the Row Filter query to the right, @state_list is enclosed in parentheses. This is because when running the query, @state_list becomes 'CA','WY','DE', for example, making the full query state_code in ('CA','WY','DE'). Without the parentheses, that query would not work. Parentheses are not added by the touchpoint to allow users to use their variables in the most flexible ways possible.
In the touchpoint configuration:
In the workflow where the variable is used: