get https://marketplace.walmartapis.com/v3/webhooks/eventTypes
This API provides the list of event types and resource names that you can subscribe to. Notifications will be triggered only for the event types that you subscribe to using the Create Subscription API.
Event Types are workflow events that are triggered when the status or conditions change. Some examples are an offer moving from published to unpublished status, an order getting auto-cancelled by Walmart, a buy box price/winner change, etc.
Resource Names are functional API categories that group similar event types. Resource Names can be Item, Price, Orders, Inventory, etc. The permissions to subscribe to an Event Type is defined by the Resource Name, which is mapped to permissions in Delegated Access.