Ad Hoc Routing – Allows initiators and/or approvers to route documents on an as- needed basis to any other user in the system, either for approval or FYI. Ad hoc routing is used to acquire approvals not otherwise possible. Account Manager Routing – The system automatically routes most documents to the account manager for each account cited in the document. The exceptions are below. Review Hierarchy Routing – Allows additional approvals to be required at the organizational level, after account manager routing. This could be used to route.