Here's how to choose the Jira instance and project that will be linked to your Polaris project.
Before members of your team can export issues to Jira, your Polaris project must be associated with a Jira instance and with a single Jira project within that instance. Your organization administrator can add as many as 25 Jira instances, and each of those might have numerous projects, but you must choose just one instance and one Jira project for your individual Polaris project.