# Creates a check-in Request

Endpoint: POST /reservation/checkin
Version: v1

## Query parameters:

  - `api-version` (string)

## Request fields (application/json):

  - `hotelConfirmationNumber` (string, required)
    Confirmation number provided to CLC for the stay
    Example: "13212"

  - `clcHotelId` (integer, required)
    CLC Hotel ID
    Example: 776655

  - `employeeIdentifier` (string,null)
    Employee identifier (Badge Number, Member ID, or Card ID)
    Example: "999999"

  - `supplierReservationId` (string,null)
    Supplier reservation id
    Example: "19457856A3"

  - `source` (string, required)
    Source of the reservation
    Example: "HOS"

  - `checkInDateTime` (string, required)
    Check-in date and time (in hotel timezone with UTC offset)
    Example: "2026-10-17T14:30:00-05:00"

  - `expectedCheckOutDateTime` (string, required)
    Expected check-out date and time (in hotel timezone with UTC offset)
    Example: "2026-10-19T14:30:00-05:00"

  - `roomNumber` (string, required)
    Room number
    Example: "201"

  - `folio` (string, required)
    Folio number
    Example: "201"

  - `guestFirstName` (string, required)
    Guest first name
    Example: "Adam"

  - `guestLastName` (string, required)
    Guest last name
    Example: "Addams"

  - `roomType` (string, required)
    Room type (Single or Double)
    Example: "Single"

  - `occupancy` (integer, required)
    Number of guests in room
    Example: 1

  - `loyalty` (boolean,null)
    Whether loyalty was used
    Example: true

  - `numberOfNights` (integer, required)
    Number of nights for the stay
    Example: 2

  - `reservationInformation` (string,null)
    Additional reservation information
    Example: "Reservation details"

## Response 400 fields (application/json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)


## Response 201 fields

## Response 500 fields