Approvers in APM have the authority to approve or reject documents that are sent to them for approval using an approval route. Approvers have maximum approval limits for each approval route they are on. You can specify that an approver must review all requests.
Employees with approval authority for different areas of responsibility can be included on multiple approval routes. However, an employee cannot be included more than once on the same approval route. For example, it is valid for John to be included on an approval route for purchases in the castor department and on a different approval route for maintenance work in the same or a different department. It is not valid for John to be mentioned twice on either of these routes.
Any employee identified as an approver on the same approval route and who has a higher approval limit than the absent employee can approve the request. The absent employee and any approvers between the absent employee and the actual approver are pre-empted by this approval.