# ReservationType

> [!WARNING]
> Display \& Video 360 API v1 has been sunset.

Possible reservation types for a line item or insertion order.

| Enums ||
|---|---|
| `RESERVATION_TYPE_UNSPECIFIED` | Reservation type value is not specified or is unknown in this version. |
| `RESERVATION_TYPE_NOT_GUARANTEED` | Not created through a guaranteed inventory source. |
| `RESERVATION_TYPE_PROGRAMMATIC_GUARANTEED` | Created through a programmatic guaranteed inventory source. |
| `RESERVATION_TYPE_TAG_GUARANTEED` | Created through a tag guaranteed inventory source. |