Hi Divyanshu,
PI SLD is connected to Solman. I verified it from SLDAPICUST and SLDCHECK in Solman.
I tried creating Product System from LMDB but while adding Technical system, the SID is not appearing as it is not available in SMSY. 
I have not updated CR and CIM. may I know how important updating this? can you please give more details on this?
thanks,
ASK