Service desk agents & customers can add comments & votes on the cards displayed on the roadmap portal. To be precise, following actions are available -
Action
Service desk customer
Service desk agent
Add comment
From customer portal
From customer portal
From Jira new issue view → Glance panel
Edit comment
From customer portal
Can edit only own comment
From customer portal
From Jira new issue view → Glance panel
Can edit only own comment
Delete comment
From customer portal
Can delete only own comment
From customer portal
From Jira new issue view → Glance panel
Can delete only own comment
Add vote
From customer portal
From customer portal
From Jira new issue view → Glance panel
Remove vote
From customer portal
Can remove only own vote
From customer portal
From Jira new issue view → Glance panel
Can remove only own vote
Add vote on behalf of
Not available for customer users
From customer portal
From Jira new issue view → Glance panel
Can add vote for any customer/agents only if allowed from board settings
Remove vote on behalf of
Not available for customer users
From customer portal
From Jira new issue view → Glance panel
Can remove vote for any customers/agents only if allowed from board settings
Susbscribe/ Unsusbscribe
From customer portal
Can Subscribe/ Unsusbscribe for own only
From customer portal
Can Subscribe/ Unsusbscribe for own only
Along with logged in users, anonymous vote/comments are also allowed and can be configured from Votes and comments section under Configuration tab of Basic settings.
Customer portal
Once logged in customers/agents can add new comments, edit/delete their own comments, and add or remove votes on existing cards for own or on behalf of others.
Jira new issue view → Glance panel
Similar to the JSD → Roadmap portal, agents can execute the above actions from glance panel available within Jira new issue view.