# Firebase.Installations

## Summary

| ### Enumerations ||
|---|---|
| `https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations_1a47b9cbcbe1bfe4e1d81a3b97d6fa5960{ https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations_1a47b9cbcbe1bfe4e1d81a3b97d6fa5960a88183b946cc5f0e8c96b2e66e1c74a7e, https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations_1a47b9cbcbe1bfe4e1d81a3b97d6fa5960a88a12f09800c497f30b98781952b50f2, https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations_1a47b9cbcbe1bfe4e1d81a3b97d6fa5960af237deac1e85c65673a7bba9093bca7e }` | enum[Installations](https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations) error codes. |

| ### Classes ||
|---|---|
| [Firebase.Installations.FirebaseInstallations](https://firebase.google.com/docs/reference/unity/class/firebase/installations/firebase-installations) | [Installations](https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations) provides a unique identifier for each app instance and a mechanism to authenticate and authorize actions (for example, sending an FCM message). |

## Enumerations

### Error

```c#
 Error
```
[Installations](https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations) error codes.

| Properties ||
|---|---|
| `InvalidConfiguration` | Some of the parameters of the request were invalid. |
| `NoAccess` | [Installations](https://firebase.google.com/docs/reference/unity/namespace/firebase/installations#namespace_firebase_1_1_installations) service cannot be accessed. |
| `Unknown` | An unknown error occurred. |