# Exceptions
All exceptions we raise, other than basic Python exceptions like `KeyError`, are
subclasses of `ZohoException`.
## Base class
### `ZohoException`
```{todo}
More docs.
```
## Exceptions the API may raise

### `ZohoAPICallsExceeded`
Raised if the operation on the object exceeded our allotment of API calls.

### `ZohoAPIThrottled`
Raised if we are throttled for too many concurrent requests or calling the API
too rapidly, and our back-off limits were exceeded.

### `ZohoAuthRefreshFailure`
Raised if an attempt to refresh our Access Token fails.

### `ZohoBadRequest`
```{todo}
More docs.
```

### `ZohoInsufficentAuthKeys`
Raised if we don't have all the OAuth parameters we need to authenticate.

### `ZohoInvalidOpError`
Raised if an operation on an object is invalid, for example calling `Create()`
on an existing object.

### `ZohoMethodNotAllowed`
```{todo}
More docs.
```

### `ZohoNotFound`
```{todo}
More docs.
```

### `ZohoUnauthorized`
```{todo}
More docs.
```

### `ZohoUnknownRegionException`
Raised if you try to create an API object with either an invalid region, or a
region not supported by the API.