wbhk
billing_invoice_generated
ZyINS POSTs this event when a finalized invoice artifact is ready for an account. Use it to push invoice data into accounting systems or notify finance teams. Verify X-ZyINS-Signature before processing; reject unsigned bodies with 401. For real-time usage counters without waiting for invoice finalization, use Get time-bucketed usage. Delivery is at-least-once — deduplicate on the event's id field in the JSON body.
200Acknowledge receipt with HTTP 200 (empty body allowed).