My company has embarked on the use of Services Procurement to manage ~$2B of annual labor spend. The bulk of this spend will be managed in Ariba using the Temp Labor & Consulting drivers. Today, that spend is spread across ~3,000 active suppliers. We intend to use the Time & Expense functions as part of this program.
Obviously - an enormous challenge in front of us pertains to suppliers who refuse to participate in the Ariba Network. I am interested in any experiences you might be willing to share and/or lessons learned. I am VERY curious to hear your strategy for ushering services based purchases through the process when working with a non-Ariba Network supplier.