Automation Toolbox for Jira (ATJ) provides the capability to easily configure unique event or schedule based transactions or jobs, allowing for flexibility on an instance-wide scale. you need
Triggers define whether or not a Rule should be executed. Triggers are generally based on field, issue, project or system events, but can also be scheduled to only execute at certain times.
Selectors provide the ability to search for specific issues within a Rule and then take Actions against those issues found. Conditions provide the ability to further refine and control processing.