How does Asset Based Ordering support Asset Creation in Fusion Subscription?

Summary:

We are implementing the AssetBasedOrdering (Subscription Ordering) flow from CPQ to Subscription.

How does this flow create the Assets in Subscription Management?

So basically how and where does the asset creation of this Subscription product happen?

Does it need to implement OM or is there any other way to have the asset created?

At the end of this flow from Subscription, we are expecting the asset info to be given back to CPQ, So specifically how can we create assets from subscriptions?