" Does SAP IT Service desk integration with BMC Remedy"

Hi Experts,

I need your inputs for the below mentioned scenario.

Currently My Client is using BMC Remedy as a Ticketing tool, We are planning to integrate "Remedy" with " SAP Solution manager service desk tool".

Does integration of "Remedy tool" with SAP Solution Manager Service Desk, involves some Additional license Cost?

Any one who has implemented this scenario in there client place, could please brief me out the challenges they faced.

Thank you !!

Regards

Faraz