The designated location for an administrator to centrally review and manage all reports scheduled to run on a regular basis is the Scheduled Reports page. This page is accessed through the Reporting Manager within the Administration portal. It provides comprehensive administrative capabilities, including viewing a list of all scheduled reports, editing their schedules, changing recipients, running them on demand, or deleting the schedules entirely.

A. Viewing Prepackaged Reports and filtering is for finding and running report templates, not for managing existing, scheduled instances of those reports across the system.

C. The Reporting dashboard is primarily for end-users to view report outputs and key metrics. It does not provide the administrative tools needed to manage all scheduled reports.

D. Exporting is a function to get a list of scheduled reports for offline review. It is an action performed on the management page but is not the management tool itself.

1. SAP Ariba Help Portal - Reporting and Analytics Guide: In the section on "Managing scheduled reports," the guide explicitly states, "The Scheduled Reports page (Administration > Reporting Manager > Scheduled Reports) allows you to view, edit, run, and delete scheduled reports." This confirms the exact navigation path and administrative functions described in the correct answer. (Reference: Reporting and analytics guide for SAP Ariba Strategic Sourcing and Supplier Management solutions, Chapter: "Reporting administration", Section: "Managing scheduled reports").

2. SAP Ariba Help Portal - Common Data Import and Administration Guide: This guide details the administrative functions within SAP Ariba. The "Reporting Manager" section outlines its purpose for centralized control over reporting tasks, including scheduling, which is distinct from the user-facing dashboard or the library of prepackaged reports. (Reference: Common data import and administration guide for SAP Ariba cloud solutions, Section: "Reporting Administration Tasks").