anchor.diff:  image::invoices.png[width=850,align="center"]
   +
   [NOTE]
  -*Note: Kill Bill immediately generated the invoice for the first month of the subscription because the plan (on which the subscription in based) has no trial period and because billing is performed _in advance_ by default.
  +*Note: Kill Bill immediately generated the invoice for the first month of the subscription because the plan (on which the subscription is based) has no trial period and because billing is performed _in advance_ by default.
   +
   . Click on the invoice number to see the invoice details: 
   +
  
positive.code: 
  . On the customer Account page, click *Subscriptions* on the sub-menu. 
  + 
  image::subscription-blank.png[width=850,align="center"]
  +
  . Next to *Subscription Bundles*, select the plus icon ( + ).
  +
  [NOTE]
  *Note:* A subscription bundle is a collection of subscriptions. A bundle contains at leaset one base subscription and zero or more add-ons.
  +
  Kill Bill opens the Add New Subscription screen. 
  +
  
negative.code: . <<step6, View the generated invoice>>
  
  [NOTE]
  *Note:* You can also achieve these same results of this tutorial with the API. In fact, if you are going to have a front-end interface (such as a website), the API calls are what you use to communicate with Kill Bill (as opposed to using Kaui). For more information, see https://docs.killbill.io/latest/getting\_started.html#_api_client[API Client] in the https://docs.killbill.io/latest/getting_started.html.html[_Getting Started_] guide.
  
  _getting started_
  
  == Before You Begin
  
  