Getting\Updating License for Service Manager 9.40

Hi All,

Recently we ahve set up a new dev stack in our environment along with existing Prod & Test servers for Service Manager 9.40.

And that new dev stack is currently running with temporary license for 60 days period and I am planning to update with License.

Please can any one suggest the detailed steps or process to update or get the license?

Regards,

D_M_K