Ariba Extends Spend Management Days.

Five Additional Events Planned to Help Companies Move Quickly Along the Path to Spend Management

SUNNYVALE, Calif. -- Ariba([R]), Inc. (Nasdaq:ARBA), the leading spend management solutions provider, today announced that it has extended its Spend Management Days, a series of thought-leadership events designed to help companies of all sizes quickly achieve their spend management goals. Based on the popularity of events held in Columbus, Minneapolis and New York City, the company will host five additional seminars throughout the remainder of the year, beginning October 17 in Toronto and continuing with dates in San Jose, Chicago, Washington, D.C. and Dallas.

"Spend management is a journey. Some companies set out to drive savings. Others focus on centralizing their procurement/sourcing strategy and building competencies in specific categories. And many seek to drive organizational change and operational excellence," said Christine Crandell, Vice President of Corporate Marketing, Ariba. "Our Spend Management Days are unique forums in which companies can gain insights and best practices that can help them achieve their goals, regardless of where they are along the path to spend management."

Each year, more than $500 billion in corporate profits are lost due to inefficiencies. With the right spend management strategy, companies can reduce their risk, optimize their resource management and ensure that they recognize savings that will impact their bottom line. Ariba's Spend Management Days provide practical, actionable information that companies can use to design and execute effective spend management initiatives that enable them to transform their businesses and gain competitive advantage.

The day-long sessions feature interactive presentations from procurement executives with leading companies who have successfully implemented spend management programs, overviews of the latest solutions and industry trends from Ariba category specialists and spend management professionals and informal breakout sessions during which attendees can network with their peers.

For more information on Ariba Spend Management Days 2006 series, or to register for events, please visit: http://www.ariba.com/company/SMD_events.cfm

About Ariba, Inc.

Ariba, Inc. is the leading provider of spend management solutions to help companies realize rapid and sustainable bottom line results. Successful companies around the world in every industry use Ariba Spend Management[TM] software and services. Ariba can be contacted in the U.S. at 1.650.390.1000 or at www.ariba.com.

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Ariba, the Ariba logo, AribaLIVE and SupplyWatch are registered trademarks of Ariba, Inc. Ariba Spend Management, Ariba Spend Management. Find it. Get it. Keep it., Ariba. This is Spend Management, Ariba Solutions Delivery, Ariba Analysis, Ariba Buyer, Ariba Category Management, Ariba Category Procurement, Ariba Contract Compliance, Ariba Contracts, Ariba Contract Management, Ariba Contract Workbench, Ariba Data Enrichment, Ariba eForms, Ariba Electronic Invoice Presentment and Payment, Ariba Invoice, Ariba Sourcing, Ariba Spend Visibility, Ariba Travel and Expense, Ariba Procure-to-Pay, Ariba Workforce, Ariba Supplier Network, Ariba Supplier Connectivity, Ariba Supplier Performance Management, Ariba PunchOut, Ariba QuickSource, PO-Flip, Ariba Settlement, Ariba Spend Management Knowledge Base, Ariba Ready, Ariba Supply Lines, Ariba Supply Manager, Ariba LIVE and It's Time for Spend Management are trademarks or service marks of Ariba, Inc. Ariba Proprietary and Confidential. All rights reserved. Patents pending. All other trademarks are property of their respective owners.

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Safe Harbor Statement under the Private Securities Litigation Reform Act 1995: Information and announcements in this release involve Ariba's expectations, beliefs, hopes, plans, intentions or strategies regarding the future and are forward-looking statements that involve risks and uncertainties. All forward-looking statements included in this release are based upon information available to Ariba as of the date of the release, and we assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance and actual results could differ materially from our current expectations. Factors that could cause or contribute to Ariba's operating and financial results to differ materially from its current expectations include, but are not limited to: delays in development or shipment of new versions of Ariba's products and services; lack of market acceptance of Ariba's existing or future products or services; inability to continue to develop competitive new products and services on a timely basis; introduction of new products or services by major competitors; the ability to attract and retain qualified employees; difficulties in assimilating acquired companies; long and unpredictable sales cycles and the deferrals of anticipated orders; declining economic conditions; inability to control costs; changes in the company's pricing or compensation policies; significant fluctuations in our stock price; the outcome of and costs associated with pending or potential future regulatory or legal proceedings; the impact of our acquisitions, including the disruption or loss of customer, business partner, supplier or employee relationships; and the level of costs and expenses incurred by Ariba as a result of such transactions. Factors and risks associated with its business, including a number of the factors and risks described above, are discussed in Ariba's Form 10-K filed December 7, 2005 and in its Form 10-Q filed August 9, 2006.