Unable to perform issue transition even after having required permissions, it is shows the error 'You don't have permission to transition the issue'
Platform Notice: Cloud - This article applies to Atlassian products on the cloud platform.
Summary
The user is unable to perform issue transitioning from one status to another status in the project even after having all the required permissions. It shows an error message 'You don't have permission to transition the issue.'
Environment
Jira Cloud
Diagnosis
The user have all the necessary permission to perform workflow transition but still the user is unable to perform issue transition.
Cause
There can be certain workflow conditions from the JSU Automation Suite for Jira Workflows which prevents the workflow transitions.
Solution
Check the workflow transition for all the status. If you find the any condition such as "com.googlecode.jsu.workflow.condition.UserIsInAnyRolesCondition" in workflow transition. This seems to affect overall transitions in the workflow.
This condition are part of the JSU Automation Suite for Jira Workflows (a 3rd party app installed on your site) that are preventing transitions from being executed.
Removing the condition "com.googlecode.jsu.workflow.condition.UserIsInAnyRolesCondition" on the transitions will resolve the issue and user can perform the workflow transition. Please make to publish the workflow after making the changes.