Once a change request is created it gets the Created status. In this status you can keep editing the change request until it is finished, after which the creator changes the status to Under Signing by Approver.
Once approvers have signed off, the change request is then put in the Implementing status. During this status, tasks need to be executed and signed off by each task responsible. When the last task is done, the status is changed automatically to the Under Signing by QA status. QA then decides if it can be closed or if there’s something missing and we need to go back to the implementing status until everything looks good and the change request is closed.