This validator confirms that the logged-in user has one of the specified project role(s).
To add the User In Project Role Validator
Go to the transition of your workflow, switch to the Validators tab and click on the Add Validator button.
Select JEP - user in project role validator and then click on the Add button.
Select the project role(s) that the user should have to proceed with the transition.
Click the Add button, and that's it.
If the user does not have the relevant project role for this validator, then it will not proceed with the transition and will give an error message like the one below.
Do not forget to publish the workflow!