anchor.diff:  |Trigger invoice dry run with target date `2022-09-17`  |Invoice generated with two invoice items corresponding to both plans for `$299.95`. 
   |===
   
  -=== Catalog with add-on plan
  -
  -This section uses the  https://github.com/killbill/killbill-docs/blob/1a945188c0ef53a3c7f797b4890514d35c09c46f/catalogs/monthly-with-trial-and-discount.xml[Monthly No Trial With Addon] catalog. 
  -
  -
  -It has a BASE and an ADDON product as follows:
  +=== Catalog with Add-on plan
  +
  +This section uses the https://github.com/killbill/killbill-docs/blob/1a945188c0ef53a3c7f797b4890514d35c09c46f/catalogs/monthly-with-trial-and-discount.xml[Monthly No Trial With Add-on] catalog. 
  +
  +
  +It has a `BASE` product and `ADD_ON` product as follows:
   
   [options="header",cols="1,1"]
   |===
  
positive.code: 
  * *IN_ARREAR* indicates that each recurring subscription is charged at the _end_ of the billing period.
  
  This section provides examples of catalogs with different billing modes. For simplicity sake, only catalogs with catalog level billing modes are demonstrated below, however the behavior is the same even when a per-plan billing mode is used.
  
  Also, for simplicity sake, all the catalogs demonstrated in this section include a single product (`STANDARD`) and a single plan (`standard-monthly`) corresponding to it.
  
  === IN_ADVANCE billing mode
  
  This example uses the  https://github.com/killbill/killbill-docs/blob/1a945188c0ef53a3c7f797b4890514d35c09c46f/catalogs/in-advance-billing.xml[In Advance Billing] catalog. It specifies an *IN_ADVANCE* billing mode. In this case, the `standard-monthly` plan has a single `EVERGREEN` phase with a monthly recurring charge of `$24.95` (plan phases are explained in the next section).
  
  [options="header",cols="1,1"]
  |===
  
negative.code: |Plan Name   |Product|Plan Description
  //----------------------
  |standard_monthly   |Standard   |Single EVERGREEN phase with a monthly recurring charge of $24.95   
  |standard-annual  |Standard   |Single EVERGREEN phase with an annual recurring charge of $275  
  |===
  
  
  