anchor.diff:  |===
   |Action   |Result   
   //-------------
  -|Create a subscription on `2021-09-17`   |Invoice generated for `$24.95` for  `2021-09-27` to `2021-10-17` since *IN_ADVANCE* billing is used.
  +|Create a subscription on `2021-09-17`   |Invoice generated for `$24.95` for  `2021-09-17` to `2021-10-17` since *IN_ADVANCE* billing is used.
   |Trigger invoice dry run with target date `2021-10-17`    |Invoice generated for  `$24.95` for `2021-10-17` to `2021-11-17`  
   |===
   
  
positive.code: |Create a subscription on `2021-09-10`   |Invoice generated for `$24.95` for `2021-09-10` to `2021-10-10` 
  |Trigger invoice dry run with target date `2021-09-18`    |Invoice generated for  `$24.95` for `2021-09-17` to `2021-09-24`  
  |Trigger invoice dry run with target date `2021-10-15`    |Invoice generated for  `$24.95` for `2021-10-15` to `2021-10-22`   
  |Trigger invoice dry run with target date `2021-10-29`    |No invoice generated as fixed term is over.  
  |===
  
  
  === No trial and Monthly Evergreen Phase
  
  This example uses the  https://github.com/killbill/killbill-docs/blob/1a945188c0ef53a3c7f797b4890514d35c09c46f/catalogs/monthly-no-trial.xml[Monthly No Trail] catalog. In this case, the `standard-monthly` plan has a single `EVERGREEN` phase with a monthly recurring charge of `$24.95`. So, users will be charged `$24.95` monthly in perpetuity.
  
  [options="header",cols="1,1"]
  |===
  
negative.code: 
  Another important section in the catalog is the https://docs.killbill.io/latest/userguide_subscription.html#_billing_alignment_rules[Billing Alignment Rules] section. 
  
  Brief summary about the Billing Alignment Rules:
  
  * The _Billing Alignment Rules_ section specifies whether the user will be billed at the account level, subscription level or subscription bundle level. 
  * If the catalog specifies `ACCOUNT` billing alignment, all the subscriptions belonging to the account are aligned and invoiced with the _Bill Cycle Day (BCD)_ specified while creating an account. 
  * If the catalog specifies `SUBSCRIPTION` billing alignment, each subscription will be invoiced as per its bill date.
  * If the catalog specifies `BUNDLE` billing alignment, all the subscriptions within a bundle are aligned and invoiced on the same day. 
  
  