--- title: "JQL use cases" canonical: "https://support.appfire.com/space/JSUCLOUD/12518307/JQL%20use%20cases" format: markdown --- > Macro (aura-html) --- We built integrated JQL in many of our [workflow post functions](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518401), allowing Jira administrators to set wider parameters that can be fully customized. Below, you will find a few examples demonstrating how flexible and powerful JQL can be when used with JSU. Refer to the [JQL reference](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518329) for details on how to use JQL with JSU. ## JQL in post functions In several JSU post functions, you can specify a JQL query to retrieve the issues to be modified by the post function. See also [Related Issues](https://appfire.atlassian.net/wiki/spaces/JSUCLOUD/pages/12518756). ### Use Case 1: Update the Description of particular sibling issues - **Post function**: Update Any Issue Field - **Transition**: `Resolve` in our *Testing Subtask *workflow ![Screenshot of the Update Any Issue Field configuration as described on this page.](media://b831daac-a8c2-4a3c-a075-869475c70962) ### Use case 2: Copy fields from a template issue - **Post function**: Copy Value from Other Field We are using issue XY-23 as a template. Only Jira admins can view this issue. It has pre-configured values for several fields. ![Screenshot of an example JQL query for issue key.](media://a5165cbb-bcca-4b95-b011-e085754ae0d6) ### Use Case 3: Change the status of critical issues in an Epic **Post function**: Linked Transition If an epic has critical and blocker issues that are still in the open state, change it to [in progress]. ![Screenshot of the Linked Transition post function configured with a JQL query. Returned issues will be moved to In Progress.](media://d062225a-16df-4541-bf33-5a3e870761ca)