Has SubTasks Validator

With this workflow post-function, you can ensure that issue has or not subtasks before to execute this transicion.

To add 'Has SubTasks Validator' to a transition: 

1. Click Edit for the workflow that has the transition you wish to add the validator on.
2. In the Workflow Designer, select the transition.
3. Click on Validator in the properties panel.
4. Click on Add validator.
5. Select Has SubTasks Validator from the list of validators.
6. Click on Add to add the validator on the transition.
7. Fill the form shown below and press 'Add' button.

Fields

Error Message – Set here the message you want to display o users when this validation fails