Performing additional processing after a transition is executed

JIRA allows you to perform additional tasks as part of a workflow transition through the use of post functions. JIRA makes heavy use of post functions internally, for example, with the out-of-the-box workflow, when you reopen an issue, the resolution field value is cleared automatically.

In this recipe, we will look at how to add post functions to a workflow transition. We will add a post function to automatically clear out the value stored in the Reason for Backlog custom field when we take it out of the Backlog status.

Getting ready

By default, JIRA comes with a post function that can change the values for standard issue fields, but since Reason for Backlog is a custom field, we need to have the JIRA Suite Utilities add-on installed.

You can download it from the following link or install it directly using the Universal Plugin Manager:

https://marketplace.atlassian.com/plugins/com.googlecode.jira-suite-utilities

How to do it…

We...