Show Sub-Task on Kanban board when filtering on a specific issue type

[Punisher]

We have a Kanban project with two boards. One of the boards is to only show a specific issue type called Fulfillment. The filter is project = COSUP AND issuetype = Fulfillment ORDER BY Rank ASC

This show only the issue type Fulfillment. What we are not able to see is any Sub-Task under the issue type Fulfillment. If I just add sub-task in the filter all the sub-task not part of the Fulfillment issue types will show. Any ideas?

[Petter Gonçalves]

Hello Brad, 

To create a filter to search for sub-tasks where the parent issue meets certain criteria (issuetype = Fulfillment) you will need to use ScriptRunner plugin to configure the following query:

issueFunction in subtasksOf("project = XXX AND issuetype = Fulfillment")