Contact information from Contracts to Service Request form.

HI all,

We have a requirement to define the contact information on the Contracts and we want whenever the PM SR's are created, the contact information automatically flows to it. Is it possible using standard functionality.

I had tested by creating a Contact on Customer setup and then updating the contract with same information. But on creating new SR for that Contract the contact information does not flow. Can we do this?

And if we want to achieve this through custom conc program, then can we simply update contact information on existing SR by API. Please guide.