I can see how to use Exalate to sync a Zendesk ticket to Jira, etc. My scenario is slightly different.

We already use the built-in Jira-Zendesk integration to create Jira tickets from Zendesk for escalations. An attribute change or state change in Jira already pushes the right data back to Zendesk.

But when someone adds a comment in Jira, there is no way to push the comment to Zendesk. Doing so is my Exalate use case.

So is there a way to implement this using Exalate:

"When a new comment is added to a Jira ticket, the comment is added as a Zendesk comment if and only if there is a already corresponding ticket already linked"

Any guidance would be appreciated. I can do the work, but I don't know where to start!