The Webhook Subscriptions Topics page suggest that attributed_sessions_first is available but it isn’t listed as an event when creating a new webhook under notifications.
How do I subscribe for this webhook subscription?
Topic summary
Issue: A developer saw the Shopify Admin GraphQL (2022-10) documentation listing the webhook subscription topic “attributed_sessions_first” but could not find it in the Admin Notifications UI when creating a new webhook.
Clarification: These topics are not available through the Shopify Admin “Notifications” event dropdown. They must be subscribed to from an app (i.e., programmatically), rather than via the UI. In Shopify’s terminology, webhook subscription topics are event types that apps can register for using the API, and some are not surfaced in the Admin’s Notifications settings.
Outcome: Clear resolution provided—use an app to subscribe to “attributed_sessions_first” instead of the Notifications UI.
Status: Resolved. No remaining open questions or additional steps were discussed.
The answer is that these topics are not available from the notifications event drop down but have to be subscribed to from an app.