# Definition Settings
All the following attributes serve various functions as how the definition functions inside of Plex Meta Manager.
| Attribute | Description & Values |
|:-----------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `name` | **Description:** Used to specify the name of the definition in Plex as different than the mapping name.
**Values:** Any String |
| `limit` | **Description:** Used to specify the max number of items for the definition
**Values:** Number greater than 0 |
| `template` | **Description:** Used to specify a template and template variables to use for this definition. See the [Templates Page](../templates) for more information.
**Values:** Dictionary |
| `run_again` | **Description:** Used to try and add all the missing items to the definition again after the daily run.
**Default:** `false`
**Values:** `true` or `false` |
| `sync_mode` | **Description:** Used to change how builders sync with this definition.
**Default:** `sync_mode` [settings value](../../config/settings) in the Configuration File
**Values:**
`append` | Only Add Items to the Collection |
`sync` | Add & Remove Items from the Collection |
|
| `minimum_items` | **Description:** Minimum items that must be found to add to a definition.
**Default:** `minimum_items` [settings value](../../config/settings) in the Configuration File
**Values:** number greater than 0 |
| `delete_below_minimum` | **Description:** Deletes the definition if below the minimum.
**Default:** `delete_below_minimum` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `delete_not_scheduled` | **Description:** Deletes the definition if its skipped because its not scheduled.
**Default:** `delete_not_scheduled` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `tmdb_region` | **Description:** Sets the region for `tmdb_popular`, `tmdb_now_playing`, `tmdb_top_rated`, and `tmdb_upcoming` |
| `validate_builders` | **Description:** When set to false the definition will not fail if one builder fails.
**Default:** `true`
**Values:** `true` or `false` |
| `cache_builders` | **Description:** Caches the items found by the builders for a number of days. This is useful if you run the same configuration on multiple libraries/servers in one run just set the value to `1`.
**Default:** `0`
**Values:** number 0 or greater |
| `blank_collection` | **Description:** When set to true the collection will be created with no builders and no items added.
**Default:** `false`
**Values:** `true` or `false` |
| `build_collection` | **Description:** When set to false the collection won't be created but items can still be added to Radarr/Sonarr. Does not work for playlists.
**Default:** `true`
**Values:** `true` or `false` |
| `server_preroll` | **Description:** Used to set the `Movie pre-roll video` Text box in Plex under Settings -> Extras.
You can run this with a [schedule](schedule) to change the pre-rolls automatically.
**Values:** Any String |
| `missing_only_released` | **Description:** definition Level `missing_only_released` toggle.
**Default:** `missing_only_released` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `only_filter_missing` | **Description:** definition Level `only_filter_missing` toggle.
**Default:** `only_filter_missing` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `show_filtered` | **Description:** definition level `show_filtered` toggle.
**Default:** `show_filtered` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `show_missing` | **Description:** definition level `show_missing` toggle.
**Default:** `show_missing` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `save_report` | **Description:** definition level `save_report` toggle.
**Default:** `save_report` [settings value](../../config/settings) in the Configuration File
**Values:** `true` or `false` |
| `ignore_ids` | **Description:** definition level `ignore_ids` which is combined with the library and global `ignore_ids`.
**Default:** `ignore_ids` [settings value](../../config/settings) in the Configuration File
**Values:** List or comma-separated String of TMDb/TVDb IDs |
| `ignore_imdb_ids` | **Description:** definition level `ignore_imdb_ids` which is combined with the library and global `ignore_imdb_ids`.
**Default:** `ignore_imdb_ids` [settings value](../../config/settings) in the Configuration File
**Values:** List or comma-separated String of IMDb IDs |
| `name_mapping` | **Description:** Used to specify the folder name in the [Image Assets Directory](../../home/guides/assets) i.e. if your definition name contains characters that are not allowed in file paths (i.e. for windows `<`, `>`, `:`, `"`, `/`, `\`, `?`, `*` cannot be in the file path), but you want them in your name you can this to specify the name in the file system.
**Values:** Any String |
| `test` | **Description:** When running in Test Mode (`--run-tests` [option](../../home/environmental)) only definitions with `test: true` will be run.
**Default:** `false`
**Values:** `true` or `false` |
| `changes_webhooks` | **Description:** Used to specify a definition changes webhook for just this definition.
**Values:** List of webhooks |
| `sync_to_trakt_list` | **Description:** Used to specify a trakt list you want the definition synced to.
**Values:** Trakt List Slug you want to sync to |
| `sync_missing_to_trakt_list` | **Description:** Used to also sync missing items to the Trakt List specified by `sync_to_trakt_list`.
**Default:** `false`
**Values:** `true` or `false` |
| `allowed_library_types` | **Description:** Used to specify the types of libraries that this definition can work with.
Multiple can be used for one definition as a list or comma separated string. One `false` will cause it to fail.
**Values:** `movie`, `show`, `artist`, `true`, `false` |
| `default_percent` | **Description:** Used to declare the default percent for `episodes`, `seasons`, `tracks`, and `albums` [special filters](../filters.md#special-filters). Default is 50.
**Values:** Integer between 1 and 100 |
| `ignore_blank_results` | **Description:** Used to not have Errors resulting from blank results from builders
**Default:** `false`
**Values:** `true` or `false` |