AMC check during notification creation

Hi All,

I want to create annual maintenance contract(AMC) for my "n" number of technical equipment.

Now during notification creation of the above mentioned equipment ,i need a information regarding valid existence of AMC.

The question is

1)Can I assign technical objects in any Purchasing service contracts.If so how?

2)In the object information Key for maintenance contracts(purchasing),how to use the contract check box(the check box works fine for sales maintenance and service contracts)?

3)Any other way to handle the situation?

Regards,

Sujoy