Changelog

v1 — initial publication (Commerce Core Workstream V)

The full vendor API surface documented on this site, delivered incrementally:

• Authentication — POST /api/v1/vendor/auth/token, capability-scoped, audience vendor-api.
• Offers — submit and edit product offers (/api/v1/vendor/offers), gated by the Offers capability.
• Stock — instant declared-availability/quantity pushes (/api/v1/vendor/stock/{offerId}), gated by the Stock capability.
• Cost — approval-pipelined cost pushes (/api/v1/vendor/offers/{id}/cost), gated by the Cost capability, independently of Offers.
• Orders — poll assigned fulfilment groups with delta sync, and push fulfilment status (/api/v1/vendor/orders/**), gated by the Orders capability.
• Webhooks — subscription management and HMAC-signed push delivery for vendor.order.assigned and vendor.offer.review-decision (/api/v1/vendor/webhooks/**), riding the Orders capability.

No breaking changes have been made to any endpoint documented here since first publication.