SAP | New Functions in Enhancement Packages of SAP Business Suite Applications
To find out what functionalities are contained in enhancement packages, check out the following links:
ERP : http://service.sap.com/erp-enh
CRM : http://service.sap.com/crm-enh
SRM : http://service.sap.com/srm-enh
PLM : http://service.sap.com/plm-enh
SCM : http://service.sap.com/scm-enh
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Each application has further content:
The first link shows a nice list of new functions grouped by main topics for all enhancement packages.
For example CRM:
Select any group to display the overview: