SLA escalation is not working

SLA escalation is not working

I installed SD 4.1 and have a build No:4107. I assigned a SLA with resolution time of 4min and set the Escalation Level1 to 2min.
And i logged in as requester and cretaed a new request with that priority normal for what i had set the SLA. But after the time i checked but its not modified any time or technician to which i have assigned in SLA.
Is their any problem in my configuration.
Can i set the time like this 4min & 2min. Will it take that much less time or i should give only in hours.

And i downloaded SP -9, but while installing it its giving error and uninstalling all.
can u give support for installing sp-9 for SD.





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