A checkout session's cart/buyer/fulfillment was updated

RECEIVEserving.checkout.cart_updated

Message

event_idstringrequired

checkout_session_idstringrequired

store_idstringrequired

merchant_idstringrequired

cartcart_summaryrequired

Show properties

currencystringrequired

total_minorintegerrequired

item_countintegerrequired

stagestringrequired

Allowed:cart_active

Headers

message_idstringrequired

Unique per message; consumers de-duplicate on this.

ordering_keystringrequired

The store_id. Guarantees per-store ordering; the catalog/serving tenant boundary (a store belongs to one merchant — see architecture §2a).

occurred_atstring<date-time>required

sequenceinteger<int64>

Monotonic per-connector sequence carried from the origin signal (ingest events only).

trace_idstring

Correlates a chain of events from one originating cause.

schema_versionstringrequired

Try it

Server

ServerCustom server URLOverrides the selected server; the channel address is appended.

Payload

Message payload

Live sending isn't possible for pubsub from a browser tab — copy the sample above and run it against your broker.

Message

{
  "event_id": "string",
  "checkout_session_id": "string",
  "store_id": "string",
  "merchant_id": "string",
  "cart": {
    "currency": "AUD",
    "total_minor": 0,
    "item_count": 0
  },
  "stage": "cart_active"
}