Dear All,

Here is the scenario.

I am selling software produc as one time cost along with 1 year Warranty period using sales process. After one year, Annual maintenance contract to be added as subscription with respect to the existing sales.

My Questions is how do generate the subscription from existing sales order with sales order reference? If not so, How do i link the existing product sales with the new service(AMC subscription ) ? 

Can you please reply for the above scenario in Odoo16EE/odoo17EE?

Thanks in Advance

Odoo@Tenthplanet