Has Linked Issues Validator
With this workflow post-function, you can ensure that issue has or not linked issues before to execute this transicion.
To add 'Has Linked Issues Validator' to a transition:
Click Edit for the workflow that has the transition you wish to add the validator on.
In the Workflow Designer, select the transition.
Click on Validator in the properties panel.
Click on
Add
validator
.Select
Has Linked Issues Validator
from the list of validators.Click on
Add
to add the validator on the transition.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