SAP NetWeaver provides both ABAP-based and Java-based user management solutions. In a system landscape containing a combination of ABAP and Java systems, it makes sense to integrate your user management so that you can use the same user data across different systems and can manage this data centrally. This reduces management overhead and leads to more consistent management of user data.
When you add new systems to your landscape, you need to decide which user management solution to use. This depends on factors such as the kinds of systems in your system landscape and how you want to manage your users. This section outlines some of the options for integrating user management across a system landscape. It provides some recommendations for which options to use.