Event types

Message structure

Notifications are sent in batches of up to 1,000 events as a JSON array with a fixed structure.

Example:

[
  {
    "eventId": "01952268-cd6e-73ce-afbf-c4e5f1cd8d7d",
    "eventType": "webpms:check_in",
    "creationTime": "2025-02-20T08:07:47.1234567Z",
    "payload": {
      "BookingNumber": "2026b319-500360-421894386",
      "PropertyId": "500360"
    }
  }
]

Events are sent in the order they were created, starting with the oldest ones.

payload is a JSON object whose structure depends on eventType. Personal data must not be included in payload.

Event types

Events differ by type. The type identifier has a prefix — the module identifier (API). Currently, events are published by Exely PMS и PMS Integration modules.

Exely PMS - Bookings

Name	Description
webpms:create_booking	New booking
webpms:cancel_booking	Booking cancellation
webpms:change_room	Room change
webpms:add_room_group_booking	Adding a stay to a group booking
webpms:delete_room_group_booking	Deleting a stay from a group booking

Exely PMS - Check-ins

Name	Description
webpms:check_in	Check-in
webpms:check_out	Check-out
webpms:cancel_check_in	Check-in cancellation
webpms:cancel_check_out	Check-out cancellation
webpms:change_check_in_datetime	Change of check-in date and time
webpms:change_check_out_datetime	Change of check-out date and time

PMS Integration - Synchronization

Name	Description
pms_integration_storage:booking_changed	Booking created/modified in an external PMS
pms_integration_storage:inventory_changed	Room availability updated in an external PMS
pms_integration_storage:inventory_block_changed	Availability block created/modified in an external PMS

payload examples by event type

Below are examples of a single event (an array item) for each eventType listed above.

Exely PMS - Bookings

webpms:create_booking

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:create_booking",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:cancel_booking

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:cancel_booking",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:change_room

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:change_room",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:add_room_group_booking

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:add_room_group_booking",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:delete_room_group_booking

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:delete_room_group_booking",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

Exely PMS - Check-ins

webpms:check_in

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:check_in",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:check_out

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:check_out",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:cancel_check_in

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:cancel_check_in",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:cancel_check_out

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:cancel_check_out",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:change_check_in_datetime

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:change_check_in_datetime",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}

webpms:change_check_out_datetime

{
  "eventId": "e09a9f4b-e44e-46b7-a18a-0e977c0d442e",
  "eventType": "webpms:change_check_out_datetime",
  "creationTime": "2026-03-20T14:36:16.407Z",
  "payload": {
    "BookingNumber": "2026b319-500360-421894386",
    "PropertyId": "500360"
  }
}