anchor.diff:  
   ==== Change a Subscription
   
  +In Kaui, you can change a customer's subscription from one plan to another plan. You can also define a different price than what is set in the catalog and when the change takes effect.
  +
   To change an account's subscription:
   
   1. Open the account and click *Subscriptions* on the sub-menu.
  
positive.code: |===
  
  ==== Update the Billing Cycle Day
  
  Follow the steps below to update the billing cycle day (BCD) defined for a subscription. These steps assume the subscription is billed on a monthly basis.
  
  
negative.code: This section explains how to add an add-on product to a customer's subscription.
  
  [NOTE]
  *Note:* To add an add-on to a subscription, the add-on must exist in the catalog _and_ be available in the base plan. For information on adding an add-on to the catalog, see <<part_6_tenants_and_admin>>.
  
  1. Open the account and click *Subscriptions* on the sub-menu.
  2. Hover over the gift icon and click *Add add-on*:
  