Commerce Server 2009 API vs Commerce Foundation-Collection of common programming errors

Hi Ram,Currently both API’s are acceptable methods of implementation – however the 2007 API or “Core Objects” are no longer being extended in future versions of the Commerce Server, so it is best for new projects to work with the new 2009 Commerce Foundation API. The new API is identicaly across all business areas, as opposed to the core objects which have different implementations for each business area. So for new starters there is a steep learning curve in either method. Some of benefits of the 2009 Commerce Foundation API are however:1) Consitant interface across all business areas2) Native integration into SharePoint lists and features3) Designed to support WCF 4) Based around ADO.NET Entities framework, so easy to move from existing .NET stack5) Sequence components allow for easier integration into LOB and third party systems. 6) Future support and extension in newer Commerce Server versions. Please let me know if you have any more questions.Thanks,

Lewis