Administering Tax Reporting Managing Approval Unit Hierarchies Editing Approval Unit Hierarchies Editing Approval Unit Hierarchies You must be a Service Administrator to edit an approval unit hierarchy. To edit an approval hierarchy: Click the Navigator icon . Under Workflow, click Approval Unit. Select an approval unit hierarchy, and click Edit. Select the appropriate tab for the changes that you want to make: Approvals Dimension See Setting Up the Approval Unit Hierarchy. Primary and Subhierarchy Selection See Selecting Approval Unit Hierarchy Members. Assign Owners See Assigning Approval Unit Owners and Reviewers. Usage See Viewing Approval Unit Hierarchy Usage. Click Save when done.