We have a requirement to check the and update field value based on the value of another field, Eg.- if A is system field and B is custom field we are looking to capture the corresponding value and check for all the jira issues with the same field value of A where field value for B is empty and need to update the value of B for all the impacted stories with same value field of A, by using listeners during issue created and updated events..Can you please help us to achieve this?