How to add a preventive maintenance (PM) or a service plan (SP) to a product?

How to add a preventive maintenance (PM) or a service plan (SP) to a product?

What is preventive maintenance (PM)? Preventive maintenance (or preventative maintenance) is maintenance that is regularly performed on a piece of equipment (product) to lessen the likelihood of it failing. Preventive maintenance involves the systematic inspection of equipment where potential problems are … Continued