Configuring [Radarr](https://radarr.video/) is optional but will allow you to send movies to a Radarr instance when they're found missing while updating a library's collections.
A `radarr` mapping can be either in the root of the config file as global mapping for all libraries, or you can specify the `radarr` mapping individually per library.
Below is a `radarr` mapping example and the full set of attributes:
| `url` | Radarr URL (Including URL Base if set).<br>**Example:** http://192.168.1.12:32788 | N/A | ✅ |
| `token` | Radarr API Token. | N/A | ✅ |
| `add_missing` | Adds all missing movies found from all collections to Radarr.<br>Use the `radarr_add_missing` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to add missing per collection.<br>**boolean:** true or false | false | ❌ |
| `add_existing` | Adds all existing movies in collections to Radarr.<br>Use the `radarr_add_existing` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to add existing per collection.<br>**boolean:** true or false | false | ❌ |
| `upgrade_existing` | Upgrades all existing movies in collections to match the Quality Profile of the collection.<br>Use the `radarr_upgrade_existing` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to upgrade the Quality Profile per collection.<br>**boolean:** true or false | false | ❌ |
| `root_folder_path` | Default Root Folder Path to use when adding new movies.<br>Use the `radarr_folder` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to set the Root Folder per collection. | N/A | ✅ |
| `monitor` | Monitor the movie when adding new movies.<br>Use the `radarr_monitor` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to set the Monitor value per collection.<br>**Options:** `movie`, `collection`, `none` | true | ❌ |
| `availability` | Default Minimum Availability to use when adding new movies.<br>Use the `radarr_availability` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to set the Availability per collection.<br>**Options:** `announced`, `cinemas`, `released`, `db` | `announced` | ✅ |
| `quality_profile` | Default Quality Profile to use when adding new movies.<br>Use the `radarr_quality` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to set the Quality Profile per collection. | N/A | ❌ |
| `tag` | Default list or comma-separated string of tags to use when adding new movies.<br>Use the `radarr_tag` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to set the Tags per collection. | ` ` | ❌ |
| `search` | Start search for missing movie when adding new movies.<br>Use the `radarr_search` [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition to set the search value per collection.<br>**boolean:** true or false | false | ❌ |
| `plex_path` | When using `add_existing` or `radarr_add_all` Convert this part of the path to `radarr_path`. | ` ` | ❌ |
| `radarr_path` | When using `add_existing` or `radarr_add_all` Convert the `plex_path` part of the path to this. | ` ` | ❌ |
* You can set most attributes per collection by using the [Radarr Details](../metadata/details/arr.md#radarr-definition-settings) in the collection definition.
In this example we have two Radarr instances, standard and 4K. We want to add 4K movies to the 4K Radarr instance with a different root folder and availability.
