---
title: "Overview"
canonical: "https://support.appfire.com/space/CW/69305254/Overview"
format: markdown
---
> Macro (aura-html)

# Introduction

**Update on Transition for Jira** provides a combination of workflow transition [Post Function](https://confluence.atlassian.com/adminjiracloud/advanced-workflow-configuration-776636620.html#Advancedworkflowconfiguration-postfunctions) and [Validator ](https://confluence.atlassian.com/adminjiracloud/advanced-workflow-configuration-776636620.html#Advancedworkflowconfiguration-postfunctions)that can be configured to update one or more issues or sub-tasks and determine conditional transitioning respectively. The app allows you to set issue fields with values using easy-to-use pick lists and substitution variables. You can also configure optional rules and conditions to customize updating issues and sub-tasks and setting conditional validators. Conditions may be based on information from either the original or parent issue or sub-task. 

Update on Transition for Jira offers the following features that are similar to native Jira post functions in that they are configured and can be modified during normal workflow editing:

- [Update issues](https://appfire.atlassian.net/l/cp/edhHaou0)
- [Transition issues](https://appfire.atlassian.net/l/cp/T1gAuaiJ)
- [Conditioned validator](https://appfire.atlassian.net/l/cp/XwgKwpuW)

 Update on Transition post function shares similar capabilities with [Create on Transition for Jira](https://appfire.atlassian.net/wiki/spaces/CSOT), which includes the ability to create issues or sub-tasks.

## Purpose and Scope

This guide provides details of the configuration required to leverage all the potential v4.x Update on Transition for Jira has to offer. It also explains a number of key concepts such as workflow post functions, validators, issue fields, substitution variables and customization required to help understand and use the app effectively.

## References

- [Installation](https://appfire.atlassian.net/wiki/x/6oIhB)
- [Get started](https://appfire.atlassian.net/wiki/x/pIohB)
- [Use cases](https://appfire.atlassian.net/wiki/x/QIMhB)
- [Release notes](https://appfire.atlassian.net/wiki/x/0oEhB)