| Code | This is used to define items that may be available for any of the meeting rooms. Refer to OpenTravel Code List Meeting Room Code (MRC). |
| DiscountsAvailableCode | This is used for discounts that apply to meetings (eg. corporate, military). Refer to OpenTravel Code List Discounts Available (DIS). |
| ExistsCode | This attribute is used to explicitly define whether an amenity or service is offered. Refer to OpenTravel Code list Option Type Code (OTC). This is used in conjunction with Code. |
| CodeDetail | May be used to give further detail on the code. |
| Removal | If true, this item is obsolete and should be removed from the receiving system. |
| ID | A unique identifying value assigned by the creating system. The ID attribute may be used to reference a primary-key value within a database or in a particular implementation. |
| Quantity | Used to define the quantity for an associated element or attribute. |