{
"id": "wh_evt_67aa128c2f4a",
"event": "event_attend.deleted",
"api_version": "2024-01",
"created": 1735689600,
"tenant_id": 1,
"request": {
"id": "req_8c2f4a67aa12"
},
"object": {
"@id": "/api/v1/event_attends/1042",
"id": 1042,
"status": "NEW"
},
"previous_attributes": null,
"is_update": false,
"entity_type": "event_attend",
"operation": "deleted"
}Event registration deleted
Fires when a registration is canceled. Capacity is returned to the
pool. Refunds (if any) are handled separately as product_payment.updated.
{
"id": "wh_evt_67aa128c2f4a",
"event": "event_attend.deleted",
"api_version": "2024-01",
"created": 1735689600,
"tenant_id": 1,
"request": {
"id": "req_8c2f4a67aa12"
},
"object": {
"@id": "/api/v1/event_attends/1042",
"id": 1042,
"status": "NEW"
},
"previous_attributes": null,
"is_update": false,
"entity_type": "event_attend",
"operation": "deleted"
}Authorizations
Server-to-server authentication. Generate a token in the admin UI at
Settings → Developers → API Access. Send the raw token in the
Api-Token header — there is no Bearer prefix.
Tokens can be marked read-only at creation time, in which case the API
rejects any non-GET request with 403 Forbidden.
Body
Unique delivery identifier — log this to correlate with Orgo's delivery dashboard.
"wh_evt_67aa128c2f4a"
The event type — e.g. user.created, product_payment.updated.
event_attend.deleted "event_attend.deleted"
Webhook payload schema version.
"2024-01"
Unix timestamp (seconds) of when the delivery was sent.
1735689600
ID of the Orgo tenant the event belongs to. Use this to route deliveries in a multi-tenant receiver.
1
Snapshot of the entity at the moment the event was emitted.
{ "@id": "/api/v1/event_attends/1042", "id": 1042, "status": "NEW" }
Metadata about the API request that triggered the event (when applicable).
Show child attributes
Show child attributes
True for *.updated events, false otherwise.
false
The entity family — e.g. user, product_payment, contact.
"user"
The operation — created, updated, or deleted.
created, updated, deleted Diff against the prior state. Only fields that changed are present. null for created/deleted events.
null
Response
Acknowledged. Any 2xx tells Orgo the delivery succeeded.

