Any approver of a request, or a data manager during escalation, has the option of rejecting the request to prevent it from being committed. The approver may reject a request for any reason including duplication, inaccuracy, or incompleteness of changes being requested. During the rejection, a comment is required to describe the reason for the rejection. After a request is rejected, the workflow model is cancelled and users are no longer able to perform any action on the request. A rejected request may be later copied and submitted as a new request if applicable.