Subscription Management- Invoicing question

Summary:

In Subscription Management we have Billing option and what happens in a scenario where the physical hardware along with subscription products are ordered in EBS and subscription is created in OSM, which system will send the invoice to end customer.

Since OSM will also hold billing information and Oracle EBS AR will also hold billing information and when auto invoice is run then AR invoice is automatically generated in Oracle EBS AR and is sent to customer,

Similarly in another business flow where only subscription products are ordered buy customer and these get created in OSM directly and the billing details are interfaced to Oracle AR then in this scenario which system will send the Invoice to end customer.