In many cases we could get into the definition of 'need'.
But consider something like legal/regulatory requirements. Perhaps you don't know about some law at the moment, but you should be complying with it. I have a product that fixes this problem for you.
Until I call you, you don't want it but you still need it. When I tell you this, hopefully you'll understand and I have a good chance of a sale.
But consider something like legal/regulatory requirements. Perhaps you don't know about some law at the moment, but you should be complying with it. I have a product that fixes this problem for you. Until I call you, you don't want it but you still need it. When I tell you this, hopefully you'll understand and I have a good chance of a sale.