post
https://gateway.stage.bill.com/connect-events/v3/subscriptions
Create a new event subscription. You can subscribe to multiple events with a single request.
BILL provides a full catalog of all the events that you can subscribe to with GET /v3/events/catalog. See Get events catalog in the API reference for more information.
See Webhooks in the Guides section for more information, sample requests, and notification payloads for BILL events.