Is there any billing documents in sap crm?

Hi Sap Masters,

There is some confusion regarding sap crm Billing, I need to know like in SD we have or we can create Billing documents in following paths

Logistics - SD - billing - billing documents - create

so how can we create a billing documents in crm or for creating billing documents we always have to take help from R/3, and if we can create billing documents then please tel me the path.

Thanks and Regards

Rahul