# FallbackInfo

- [JSON representation](https://developers.google.com/maps/documentation/routes_preferred/reference/rest/Shared.Types/FallbackInfo#SCHEMA_REPRESENTATION)

Information related to how and why a fallback result was used. If this field is set, then it means the server used a different routing mode from your preferred mode as fallback.

| JSON representation |
|---|
| ``` { "routingMode": enum (`https://developers.google.com/maps/documentation/routes_preferred/reference/rest/Shared.Types/FallbackRoutingMode`), "reason": enum (`https://developers.google.com/maps/documentation/routes_preferred/reference/rest/Shared.Types/FallbackReason`) } ``` |

| Fields ||
|---|---|
| `routingMode` | ``enum (`https://developers.google.com/maps/documentation/routes_preferred/reference/rest/Shared.Types/FallbackRoutingMode`)`` Routing mode used for the response. If fallback was triggered, the mode may be different from routing preference set in the original client request. |
| `reason` | ``enum (`https://developers.google.com/maps/documentation/routes_preferred/reference/rest/Shared.Types/FallbackReason`)`` The reason why fallback response was used instead of the original response. This field is only populated when the fallback mode is triggered and the fallback response is returned. |