Why some one generate a key.Its very easy to create .Firstly login to the SOLMAN.Transaction /nsmsy,Go to systems > > SAPNetweaver.Create a new system with the SID.secondly right click on SAPNetweaver and create new system with name required.(that is the SID)Thirdly go to System Landscape on the top left corner,go to objectOther object.Give the system name.Enter the details required.Lastly, when you press generate key SOLMAN key is generated.