Within the [Configuration File](configuration), the `libraries:` attribute specifies the Plex libraries that the user wants Plex Meta Manager to act on.
Attributes are used to instruct Plex Meta Manager what actions to take, such as "load the following libraries" or "execute the following Collection Definition files". These attributes can be specified individually per library, or can be inherited from the global value if it has been set. If an attribute is specified at both the library and global level, then the library level attribute will take priority.
This example is an advanced version of the library mappings which highlights some attributes being set at the global level, and some being set at the library level:
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In this example, the `"TV Shows On Second Plex"` library has a library-level `plex` configuration, which takes priority over the `plex` configuration set at the global level. <br>
The `"Anime"` library also has a library-level `radarr` configuration, which takes priority over the `radarr` configuration set at the global level.
| [`library_name`](#library-name) | Library name (required only when trying to use multiple libraries with the same name) | Base Attribute Name | ❌ |
| [`missing_path`](#missing-path) | Location to create the YAML file listing missing items for this library | `/config/<<MAPPING_NAME>>_missing.yml` | ❌ |
| [`schedule`](../metadata/details/schedule) | Use any [schedule option](../metadata/details/schedule) to control when this library is run. | daily | ❌ |
| [`operations`](operations) | Library Operations to run | N/A | ❌ |
| [`settings`](settings) | Any `setting` attribute that overrides a global value | global | ❌ |
| [`plex`](plex) | Any `plex` attribute that overrides a global value | global | ✅ Either here or globally |
| [`radarr`](radarr) | Any `radarr` attribute that overrides a global value | global | ❌ |
| [`sonarr`](sonarr) | Any `sonarr` attribute that overrides a global value | global | ❌ |
| [`tautulli`](tautulli) | Any `tautulli` attribute that overrides a global value | global | ❌ |
Each library that the user wants Plex Meta Manager to interact with must be documented with a library attribute. A library attribute is represented by the mapping name (i.e. `Movies` or `TV Shows`), this must have a unique name that correlates with a library of the same name within the Plex Media Server. In the situation that two servers are being connected to which both have libraries of the same name, the `library_name` attribute can be utilized to specify the real Library Name, whilst the library attribute's mapping name can be made into a placeholder. This is showcased below:
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```yaml
libraries:
Movies01:
library_name: Movies
Movies02:
library_name: Movies
plex:
url: http://192.168.1.35:32400
token: ####################
TV Shows:
Anime:
plex:
url: http://192.168.1.12:32400
token: ####################
```
* In this example, `"Movies01"`, `"TV Shows"`, and `"Anime"` will all use the global plex server (http://192.168.1.12:32400) which is defined using the global `plex` mapping. `"Movies02"` will use the plex server http://192.168.1.35:32400 which is defined under its `plex` mapping over the global mapping.
The `metadata_path` attribute is used to define [Metadata Files](../metadata/metadata) by specifying the path type and path of the files that will be executed against the parent library. See [Path Types](paths) for how to define them.
By default, when `metadata_path` is missing the script will look within the root PMM directory for a metadata file called `<MAPPING_NAME>.yml`. In this example, Plex Meta Manager will look for a file named `TV Shows.yml`.
The `overlay_path` attribute is used to define [Overlay Files](../metadata/metadata) by specifying the path type and path of the files that will be executed against the parent library. See [Path Types](paths) for how to define them.
The `missing_path` attribute is used to define where to save the "missing items" YAML file. This file is used to store information about media which is missing from the Plex library compared to what is expected from the Metadata file.
If your Metadata file creates a collection with `Movie 1`, `Movie 2` and `Movie 3` but your Plex library only has `Movie 1` and `Movie 3`, then the missing YAML file will be updated to inform the user that `Movie 2` was missing from the library.
The default and recommended path is `/config/<<MAPPING_NAME>>_missing.yml` where `<<MAPPING_NAME>>` is the name of the library attribute, as showcased below:
As playlists are not tied to one specific library and can combine media from multiple libraries, they require their own special [Playlist Files](../metadata/metadata) to work.
You can define Playlist Files by using `playlist_files` mapper by specifying the path type and path of the files that will be executed. See [Path Types](paths) for how to define them.
