We are currently working with Jira Service Management. We use it for our service desk, covering everything from the initial service desk inquiries to third-level support. Specifically, in the area of second and third-level support, we receive assistance from external service providers. However, communication with these external services is challenging because we do not want them to work in Jira Service Management as internal users. We have heard that integrating with other Jira instances is possible, which would prevent these licenses from being deducted from our license volume. In your opinion, what is the best approach to seamlessly integrate external services and ensure smooth communication?