Coverage Or Subscription in Sales Orders, Without Covered Association but with contract start & end

Summary:

Hi,

our client requirement is to have a service item, with duration, in order for RMCS to recognize the revenue across the duration period.

we are willing to sell it without a "Covered Item" so Service Level Agreement, Extended Warranty, Software Maintenance are not relevant for us since they requires a "Covered Item", in addition, the "Subscription" module is not in scope for our client

as I checked, We can assign a service contract dates for the "Sales Product Type" which mention above, which one is the best practice? using "Subscription" sales product type without subscription module is wrong?. the main requirement is to recognize the revenue through the contract start & end date period