R/3 Plug-In release
refers to the release status of an R/3 Plug-In.
PI 99, PI-A 99.1, PI 2000.1, PI-A 2000.1, etc.
R/3 Plug-In version refers to either a modifying, CRT-dependent version (PI.XX) or to a non-modifying, CRT-independent version (PI-A.XX).
mySAP.com component is the new name for the former New Dimension applications.

Examples for mySAP.com components are SAP APO, SAP CRM, SAP BW.
R/3 Plug-In is:
Simultaneous availability of mySAP.com components and R/3 Plug-Ins.
R/3 Plug-Ins are directly dependent on the corresponding mySAP.com component. For this reason, mySAP.com component releases and R/3 Plug-In releases occur almost at the same time. The features of the mySAP.com component release determine the features of the R/3 Plug-In release.
For further information, see
R/3 Plug-In.