Walmart Webhooks

generated: '2026-08-27'
method: searched
source: https://developer.walmart.com/us-marketplace/docs/rate-limiting (Notifications Management operations) + openapi/_original/walmart-marketplace-notifications-openapi-original.yml
provider: Walmart
providerId: walmart
description: Walmart Marketplace ships a real webhook surface. Sellers register an HTTPS destination through the Notifications
  control plane and Walmart POSTs a JSON envelope to it whenever a subscribed event fires. Thirteen event types are documented.
  The control plane is six REST operations under /v3/webhooks, including a Test Notification endpoint that fires a synthetic
  delivery at the registered URL. Walmart does NOT publish an AsyncAPI document for this surface; the AsyncAPI 2.6.0 description
  in asyncapi/walmart-marketplace-notifications-asyncapi.yml was written by API Evangelist from Walmart's documented event
  catalogue and example payloads, and per-event payload schemas are left as open objects rather than invented.
transport: HTTPS POST to a seller-registered eventUrl
content_type: application/json
envelope_fields:
- eventType
- eventVersion
- eventTime
- eventId
- payload
event_count: 13
events:
- type: OFFER_PUBLISHED
  description: An item offer has become published / buyable.
- type: OFFER_UNPUBLISHED
  description: An item offer is no longer published / buyable.
- type: BUY_BOX_CHANGED
  description: The Buy Box winner changed for an item the seller offers.
- type: INVENTORY_OOS
  description: An item hit out-of-stock.
- type: PO_CREATED
  description: A new purchase order was created for the seller.
- type: PO_LINE_AUTOCANCELLED
  description: A purchase order line was automatically cancelled by Walmart.
- type: ORDER_INTENT_TO_CANCEL
  description: The customer has signalled an intent to cancel an order.
- type: ORDER_MANAGEMENT_EVENT
  description: Order-management lifecycle event.
- type: DRIVER_STATUS_NOTIFICATION
  description: Delivery driver status update.
- type: RETURN_NOTIFICATIONS
  description: A customer return event.
- type: REPORT_STATUS
  description: An on-request report finished (or failed) generating.
- type: ASSORTMENT_RECOMMENDATIONS
  description: New assortment recommendations are available.
- type: SELLER_PERFORMANCE_NOTIFICATIONS
  description: Seller performance metric / report rollup.
control_plane:
- operation: Create Subscription
  method: POST
  path: /v3/webhooks/subscriptions
  rate_limit: 200/min
- operation: All Subscriptions
  method: GET
  path: /v3/webhooks/subscriptions
  rate_limit: 50/min
- operation: Update Subscription
  method: PATCH
  path: /v3/webhooks/subscriptions/{subscriptionId}
  rate_limit: 5/min
- operation: Delete Subscription
  method: DELETE
  path: /v3/webhooks/subscriptions/{subscriptionId}
  rate_limit: 10/min
- operation: Event Types
  method: GET
  path: /v3/webhooks/eventTypes
  rate_limit: 5/min
- operation: Test Notification
  method: POST
  path: /v3/webhooks/test
  rate_limit: 10/min
asyncapi:
  provider_published: false
  artifact: asyncapi/walmart-marketplace-notifications-asyncapi.yml
  authored_by: API Evangelist
  version: 2.6.0
  note: Derived from Walmart documentation; NOT a Walmart-published specification. Per-event payload schemas beyond the common
    envelope are open objects because Walmart gates them behind the seller portal.
docs: https://developer.walmart.com/us-marketplace/docs/notifications-overview
evidence:
- url: https://developer.walmart.com/us-marketplace/docs/rate-limiting
  status: 200
  note: Notifications Management operations and limits
- url: https://marketplace.walmartapis.com/v3/webhooks/eventTypes
  status: 401
  note: live event-type list is seller-gated