How to prevent a transition if parent has subtasks

[Molly Hopper]

I would like to build a rule into my workflow that would prevent the parent issue (service request) from using a specific transition if any subtasks are present. 

I have found ways to prevent based on the status of a subtask, but I'm looking more generically for if they are present or not. 

[Maciej Dudziak _Forgappify_]

Hi @Molly Hopper ,

Welcome to the Atlassian Community! If the built-in Sub-Task Blocking Condition doesn’t work for your use case, you may need a third-party app. There are several options on the Atlassian Marketplace that provide Jira Expression-based solutions.

I’m from Forgappify, and we developed Ultimate Condition, a feature of the Workflow Building Blocks for Jira app. It eliminates the need to learn Jira Expressions by offering a simple UI that builds the expression for you. In your case, setting it up would be as easy as the following:

I hope it will help,

Cheers

[Marc - Devoteam]

Hi @Molly Hopper 

Welcome to the community.

You can use the condition Sub-Task Blocking Condition. This condition blocks the parent if sub-tasks are present.

Otherwise with other requirements you will require an app as @Mikael Sandberg mentions.

Suggestions are:

• JMWE
• JSU
• JWT

[Mikael Sandberg]

Hi @Molly Hopper,

Welcome to Atlassian Community!

You would need an app from the Marketplace in order to do this. I have used Scriptrunner in the past to do custom conditions, but there are other apps that can do that too like Custom Workflow Condition, Validator & Postfunctions and Power Scripts to mention a few.