Salesforce Billing Developer Guide
jNote: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.
Tax Integration Core Classes
Your tax engine references these classes to manage tax information with Salesforce
Billing. They can't be modified.
The following are the blng namespace classes required for integrating Salesforce Billing with an external tax engine.