Nobi,
Re: "so i just want to ask What will happen if we have Client with more then one contract
will this effect my JSS ?"
No, it won't affect your JSS. A client can open as many contracts as he wants.
Re: "will this have any change in MY STATS (long term clients)"
No, long term clients metric will be increased only if you have been working on a contract more than three months.
