Everyone knows that the SAP versions are a big mess. The lords of Heidelberg who play around with the names they give their things are either an impulsive bunch, are making fun of us, or they must always be in uproar.

Here is a little table to help to unravel them:

Ano | UI | Edition | Version | Version | BASIS | WebAS | ECC | NetWeaver

—|—|—|—|—|—|—|—|—

| Terminal

R/2
-

1992 | Desktop | R/3

1.0
1.0

| Desktop | R/3

2.0, 2.1
2.0, 2.1

1997 | Desktop | R/3 | 3.0, 3.1 | 3.1I | 3.1I | | |

1998 | Desktop | R/3 | 4.0 | 4.0B | 4.0B | | |

2000 | Desktop | R/3 | 4.5 | 4.5B | 4.5B | | |

2001 | Desktop | R/3 | 4.6 | 4.6B, 4.6C | 4.6B, 4.6C | | |

2001 | Desktop | R/3 | 4.6D | 4.6D | 4.6D, 610 | 6.10 | |

2003 | Web | R/3 Enterprise | 1.10 | 4.7x110 | 620 | 6.20 | | NetWeaver (2003)

| Web | R/3 Enterprise | 2.00 | 4.7x200 | 630 | 6.30 | | NetWeaver (2003)

2005 | Web | mySAP

2004
640
6.40
ECC 5.0
NetWeaver 04

2006 | Web | mySAP

2005
700
7.0 (AS)
ECC 6.0
NetWeaver 04S

If this isn’t enough to make you confused, then you can find here a very good and detailed presentation on the different versions of SAP and the different capabilities of each one.