If you have multiple JIRA instances in your organization, it is sometimes useful to integrate them together, especially when teams from different projects need to collaborate and work together. In this recipe, we will integrate two JIRA instances together so we can link issues across systems.
Perform the following steps to link two JIRA instances together:
Navigate to Administration | Add-ons | Application Links.
Enter the other JIRA's URL and create the application link. JIRA should automatically detect the target application as JIRA. If, for some reason, it does not, make sure you select JIRA as the Application Type when prompted.
Once you have integrated two JIRA instances together with an application link, you will be able to search for and link issues from the remote JIRA instance to issues in the local JIRA instance. As shown in the following screenshot, when you use the link feature, JIRA will prompt you to select the...