Subscribe and Amend
Subscribe and Amend is the existing function that allows your customers to subscribe to your products or services that have recurring charges, and make changes to active subscriptions through Amendments.
New features for subscription management and billing management will not be supported on the Subscribe and Amend functions. We recommend you enable Orders Harmonization on your Subscribe and Amend tenants, and then you can start to use the Orders feature to access all the new features on Zuora Billing.
The Subscribe and Amend tenant can be identified directly from the tabs listed under the Customers tab.