| BookingCode | Used to specify the booking code for which availability is requested. |
| RatePlanCandidateRPH | Used to refer to the Rate Plan Candidate associated with this room stay. |
| RPH | A unique identifier for this room stay candidate. |
| EffectiveDate | Indicates the starting date. |
| ExpireDate | Indicates the ending date. |
| ExpireDateExclusiveInd | When true, indicates that the ExpireDate is the first day after the applicable period (e.g. when expire date is Oct 15 the last date of the period is Oct 14). |
| BedTypeCode | Indicates the type of bed(s) found in the room. Typical values would be Double, Twin, Queen, or King. Refer to OpenTravel Code List Bed Type Code (BED).List of OpenTravel Codes. |
| Composite | Indicates that the room (suite) is a composite of smaller units. |
| Configuration | Textual description of room configuration. |
| Floor | Floor on which the room is located. |
| InvBlockCode | A code or identification number that identifies the room stay as part of a group, package tour, or block of rooms designated in the inventory. |
| NonSmoking | Non-smoking indicator. |
| PromotionCode | Promotion code is the identifier used by the host to link directly with a specific named advertising campaign. By including the required code, the client is able to gain access to special offers which may have been created for a specifically targeted group via a CRM system or for a wider advertising campaign using Television or press adverts. |
| PromotionVendorCode | List of the vendor codes associated with a promotion. |
| Quantity | Defines the number of the item in question.Used for Numeric values, from 1 to 9999 inclusive. |
| RoomArchitectureCode | Specifies the architectural style of a room. Refer to OpenTravel Code List Architectural Style Code (ARC). |
| RoomCategory | Indicates the category of the room. Typical values would be Moderate, Standard, or Deluxe. Refer to OpenTravel Code List Segment Category Code (SEG). |
| RoomClassificationCode | Specifies the room classification (e.g., cabin, apartment). Refer to OpenTravel Code List Guest Room Info (GRI). |
| RoomGender | Used to request or specify a gender assignment for a room. Note: Typically used by Hosteliers. |
| RoomID | A string value representing the unique identification of a room if the request is looking for a specific room. |
| RoomLocationCode | Indicates the location of the room within the hotel structure. Typical values would be "Near Exit","Close to elevator", "Low Floor" or "High Floor". Refer to OpenTravel Code List Room Location Type (RLT). |
| RoomType | (Formerly, RoomInventoryCode) A code value that indicates the type of room for which this request is made, e.g.: double, king, etc. Values may use the Hotel Descriptive Content table or a codes specific to the property or hotel brand. |
| RoomTypeCode | Specific system room type code, ex: A1K, A1Q etc. |
| RoomViewCode | Indicates the view of the room. Typical values would be "Ocean view", "Pool view" or "Garden View". Refer to OpenTravel Code List Room View Type (RVT). |
| SharedRoomInd | If TRUE, the room requires or has sharing available. Note: Typically used by Hosteliers. |
| SizeMeasurement | Textual description of room dimensions. |
RoomAmenity