A. Approver Lookup tables process faster than other rules so approvers are notified sooner.

B. Approver Lookup tables can be used to add more than one approver using a single rule.

C. Approver Lookup tables can be modified by an administrator without accessing the approver rules editor.

D. Approver Lookup tables allow SAP Ariba to look up the appropriate approver by calling the ERP system or database.