anchor.diff:  //{ PC​I DSS (payment card industry data security standard)}
   //{The payment card industry data security standard (PCI DSS) is a set of requirements designed to ensure that all companies that process, store, or transmit credit card information maintain a secure environment. Zuora has compliance in accordance with PCI Service Provider Level1 (PCI DSS SP L1) v1.2. Zuora is listed on the VISA website as an approved provider.}
   
  -[[Permissions]]
  +[[permissions]]
   Permissions:: In Kill Bill, a defined action that can be performed in a system (for example, `TAG_CAN_ADD` OR `ACCOUNT_CAN_CREATE`). You can assign one or more permissions to a <<User_Role,role>>, which can then be associated with a user. The user can only perform the permissions associated with that role.
   
   For more information, see the Kill Bill https://github.com/killbill/killbill-api/blob/master/src/main/java/org/killbill/billing/security/Permission.java[list of user permissions].
   
  -[[Phase]]
  +[[phase]]
   Phase:: The time periods within a plan. Kill Bill phases can be any of the following types: `TRIAL`, `DISCOUNT`, `FIXEDTERM`, or `EVERGREEN`. Note that a plan has at least one phase (i.e., a plan cannot be "empty" of phases.) A phase is also referred to as a "plan phase." See <<Plan>> below.
   
  -[[Plan]]
  +[[plan]]
   Plan:: Details for the terms of the <<Subscription,subscription>> contract. In particular, plans define how much a customer pays for a product and how often they pay it (_Example:_ A Standard product at $100 per month). A plan consists of at least one phase and can have multiple phases (_Example:_ A discount phase followed by a regular price phase).
   
   [[plugin]]
  
positive.code: 
  User:: A person who logs on to Kaui.
  
  [[User_Role]]
  User Role:: A group of <<Permissions,permissions>> that specify which actions the user is allowed to perform in Kaui. A user can have multiple roles. A role can have multiple permissions.
  
  == V
  
negative.code: 
  == I
  
  [[invoice]]
  Invoice:: An invoice is a bill provided to a customer for charges that are payable on the customer's account. A single invoice consolidates charges for all subscriptions held by that customer for a specified time period. Invoices may be set to be paid automatically, or may be paid manually by the customer. An invoice consists of one or more <<Invoice_Item,invoice items>>.
  
  [[invoice_amount]]
  Invoice Amount:: The amount that a customer is charged as part of an invoice. Also known as "Invoice Total",  "Total",  "Charged Amount" or simply "Amount". At a high level, it is calculated by adding the amounts on all the chargeable <<Invoice_Item,invoice items>> associated with an invoice. See https://docs.killbill.io/latest/invoice_examples.html#_charged_amount[charged amount] for more information.
  
  [[invoice_balance]]
  Invoice Balance:: The amount that the customer owes as part of an invoice. It is positive if the customer owes something or zero otherwise. At a high level,  it is calculated by subtracting the paid amount from the <<Invoice_Amount, invoice amount>>. See https://docs.killbill.io/latest/invoice_examples.html#_invoice_balance[invoice balance] for more information.
  
  [[invoice_credit]]
  Invoice Credit:: The amount that your business owes to a customer as part of an invoice. An invoice credit is generated when an account credit is added, a subscription is cancelled, etc.
  
  [[invoice_item]]
  Invoice Item:: Represents a single item charged on an <<Invoice,invoice>>. Given an active <<Subscription,subscription>>, one could see multiple items for that subscription on a single invoice, including recurring items, usage items, fixed price items, etc. There can also be items for different subscriptions on the same invoice, as well as items that are unrelated to subscriptions, such as adjustments and taxes.
  
  [[invoice_item_type]]
  Invoice Item Type:: Specifies the type of <<Invoice_Item,invoice item>> which can be one of `EXTERNAL_CHARGE`, `FIXED`, `RECURRING`, `REPAIR_ADJ`, `CBA_ADJ`, `ITEM_ADJ`, `USAGE`, `TAX`, `PARENT_SUMMARY`. Refer to the
  https://docs.killbill.io/latest/userguide_subscription.html#components-invoicing[_Subscription Billing_] document for more information.
  
  Invoice Original Amount Charged:: The amount that the customer is charged as part of an invoice at the time of invoice creation. At a high level, it is calculated by adding the amounts on all the chargeable <<Invoice_Item,invoice items>> associated with an invoice at the time of invoice creation.
  
  [[invoice_payment]]
  Invoice Payment:: <<Payment,Payment>> made against a specific invoice. By default, Kill Bill attempts to make a payment against an invoice using the account's default <<Payment_Method, payment method>>.
  
  [[invoice_refund]]
  Invoice Refund:: Refund amount associated with an <<Invoice_Payment,invoice payment>>. Kill Bill allows issuing a full or partial refund against an invoice payment.
  
  Invoice Status:: The current state of an invoice, which can be in a `DRAFT`, `COMMITTED` or `VOID` state.
  