Exhibit 10.29

Addendum #1 to the Strategic Alliance Agreement (SAA) 
SAP/Commerce One Agreement in relation to the corProcure transaction

Dated: 29 September, 2000

This document and the two letters attached hereto is a supplementary
agreement (Supplementary Agreement) representing the key commercial terms agreed
between Commerce One, Inc. (C1) and SAP AG /and SAPMarkets, Inc. (together SAP)
and SAP Australia Pty Limited (SAP Australia) solely for the purpose of enabling
SAP Australia to perform its obligations under a proposed agreement between SAP
Australia and corProcure Pty Limited (corProcure Agreement). In the event of any
inconsistency between the terms o this Supplementary Agreement and the SAA for
the purpose of the corProcure Agreement, this document shall prevail. Additional
terms are included in a Tripartite Agreement with corProcure to which both SAP
Australia and C1 are parties. It is the intention of the parties that the
Tripartite Agreement and the SAA (as varied by the Supplementary Agreement) are
to be read concurrently and each agreement is to be given full force and
effect.

Commerce One, SAP Australia and SAP agree to the terms set out in this
document.

1. corProcure
2. Pricing
3. MarketSite, (note: SAP Australia will initially license MarketSite to
corProcure not MarketSET and MarketSET may thereafter be provided to corProcure
where this is part of a new release of the software delivered to corProcure by
SAP and/or SAP Australia).
4. Auction Software
5. iMerge and
6. Content factory (now Content Refinery)
7. One Hosted BuySite
8. SAP APO and SAP BW for use on MarketSite (included at no additional license
fee charge to corProcure)
9. corProcure will license 5 Enterprise BuySite licenses for AUD $2.5m as
part of initial order
10. Enterprise BuySite and Hosted BuySite for a license fee of AUD $500k
each (these may be independently licensed and are not part of the 'initial
bundle')
11. Net Market Maker Solution (comprises MarketSite Builder and a Hosted BuySite
only) for a license fee of AUD $500k per license. This license fee is valid
to 30 September 2001. The NetMarket Maker Solution may be independently
licensed and is not part of the 'initial bundle.'
12. A revenue share of 6% of the Net Market Maker Solution's entity's gross
revenue will apply to all Net Market Maker Solutions sold under this agreement
for a five year period (less any credits or returns which the licensee may
ultimately charge to or deduct from revenue). At the end of the 5 year period,
the parties will negotiate the percentage of gross revenue that will be payable
in respect of Net Market Maker Solution.
13. SAP Australia will provide a 65 named user license for mySAP.com for use by
corProcure as their internal 'ERP' system.
14. Commercial Terms
15. Software Rights and Usage
16. The MarketSite Software will be located on equipment outside Australia and
New Zealand until August 2001. After this time, the MarketSite software may
be moved to Australia or New Zealand.
17. Components of the Marketplace Software other than the MarketSite software
may be installed in Australia or in the same location as the MarketSite
software.
18. End users and suppliers may access the Marketplace Software in relation to
the electronic supply and procurement of products and services.
19. The 5 initial instances of the Buyer Software will be licensed to corProcure
or a wholly owned subsidiary.
20. corProcure may novate the 5 initial Buyer Software licenses to the Founding
Shareholders, entities in which one or more Founding Shareholders or corProcure
have an equity interest ("Nominees"), wholly owned subsidiaries of Founding
Shareholders or Nominees or PricewaterhouseCoopers (other than Hosted BuySite)
on terms which are substantially similar to the terms of the license granted to
corProcure.
21. Thereafter corProcure, Founding Shareholders, Nominees or their wholly owned
subsidiaries as well as PwC (other than Hosted BuySite) may license the Buyer
Software directly from SAP Australia on an ongoing basis on terms which are
substantially similar to the terms of the license granted to corProcure.
22. Where the licensee of the Buyer Software is corProcure or a Founding
Shareholder, their Affiliates shall also be entitled to use the Buyer Software.
"Affiliate" has the meaning given in the corProcure Agreement.
23. The Buyer software must operate on equipment located in Australia.
24. The NetMarket Maker Software may be licensed to corProcure, Founding
Shareholders, Nominees or their wholly owned subsidiaries directly from SAP
Australia on an ongoing basis on terms which are substantially similar to the
terms of the license granted to corProcure.
25. End users and suppliers may access the Marketplace Software in relation to
the electronic supply and procurement of products and services.
26. A change in control of a licensee does not affect its rights to use the
NetMarket Maker software.
27. The Net Market Maker software must operate on equipment located in
Australia.
28. Indemnity
29. On equipment outside Japan, Germany, all countries in the Americas
(excluding USA and Canada), Australia and New Zealand; or
30. Otherwise than for the purpose of setting up a branded MarketSite
specifically targeted for the provision of goods and services purchased by a
healthcare provider), does not infringe the rights of any party.
31. Professional Services



[Signature Page to Follow]

Signed for and on behalf of Commerce One, Inc by

/s/ Peter Pervere_____________            Peter Pervere________________

Signed for and on behalf of SAP AG by

/s/ Henning Kagermann_______________            /s/ Michael Junge__________________

Signed for and on behalf of SAPMarkets, Inc by

/s/ Mayur Shah______________            ________________________

Signed for and on behalf of SAP Australia Pty Limited by

/s/ Illegible______________            ________________________

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