Use Chatline
Jira Automation action
Chatline adds a Send Google Chat message action to Jira Automation. Any rule can post its own text to a connected space.
Add the action to a rule
In Jira open Settings → System → Global automation (or the automation of a project) and create or edit a rule.
Choose the trigger, for example Work item created or Work item transitioned.
Add an action and search for Send Google Chat message.
The first time, Jira asks to connect Automation to Chatline. Click Connect.
Choose the space, and write the title, the message and an optional link.
Click Next, then Save and enable (or Update).


Smart values
Title, message and link accept Jira smart values. They are filled in when the rule runs.
{{issue.key}} moved to {{issue.status.name}} by {{initiator.displayName}}
{{issue.summary}} is due {{issue.duedate.shortDate}}
Release {{version.name}} is out: {{version.description}}
{{issue.url}}The link becomes the Open in Jira button and must start with https://.
Who can use it
Anyone who can edit automation rules can pick a space; only Jira administrators can connect spaces. Messages from rules count like any other message in the space's delivery status.