---
title: Timeline schema
description: The Timeline schema lists all the JSON fields and objects required to create a Timeline or a Timeline template using the Create Timeline API. This screenshot...
url: https://www.elastic.co/docs/reference/security/fields-and-object-schemas/timeline-object-schema
products:
  - Elastic Cloud Serverless
  - Elastic Security
applies_to:
  - Serverless Security projects: Generally available
  - Elastic Stack: Generally available
---

# Timeline schema
The Timeline schema lists all the JSON fields and objects required to create a Timeline or a Timeline template using the Create Timeline API.
<important>
  All column, dropzone, and filter fields must be [ECS fields](https://www.elastic.co/docs/reference/ecs).
</important>

This screenshot maps the Timeline UI components to their JSON objects:
![timeline object ui](https://www.elastic.co/docs/reference/security/images/security-timeline-object-ui.png)
1. [Title](#timeline-object-title) (`title`)
2. [Global notes](#timeline-object-global-notes) (`globalNotes`)
3. [Data view](#timeline-object-dataViewId) (`dataViewId`)
4. [KQL bar query](#timeline-object-kqlquery) (`kqlQuery`)
5. [Time filter](#timeline-object-daterange) (`dateRange`)
6. [Additional filters](#timeline-object-filters) (`filters`)
7. [KQL bar mode](#timeline-object-kqlmode) (`kqlMode`)
8. [Dropzone](#timeline-object-dropzone) (each clause is contained in its own `dataProviders` object)
9. [Column headers](#timeline-object-columns) (`columns`)
10. [Event-specific notes](#timeline-object-event-notes) (`eventNotes`)


| Name                      | Type                                 | Description                                                                                                                                                                                                                                |
|---------------------------|--------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `columns`                 | [columns[]](#col-obj)                | The Timeline’scolumns.                                                                                                                                                                                                                     |
| `created`                 | Float                                | The time the Timeline was created, using a 13-digit Epochtimestamp.                                                                                                                                                                        |
| `createdBy`               | String                               | The user who created the Timeline.                                                                                                                                                                                                         |
| `dataProviders`           | [dataProviders[]](#dataProvider-obj) | Object containing dropzone queryclauses.                                                                                                                                                                                                   |
| `dataViewId`              | String                               | ID of the Timeline’s Data View, for example: `"dataViewId":"security-solution-default"`.                                                                                                                                                   |
| `dateRange`               | dateRange                            | The Timeline’s search period:- `end`: The time up to which events are searched, using a 13-digit Epoch timestamp.- `start`: The time from which events are searched, using a 13-digit Epoch timestamp.                                     |
| `description`             | String                               | The Timeline’s description.                                                                                                                                                                                                                |
| `eventNotes`              | [eventNotes[]](#eventNotes-obj)      | Notes added to specific events in the Timeline.                                                                                                                                                                                            |
| `eventType`               | String                               | Event types displayed in the Timeline, which can be:- `All data sources`- `Events`: Event sources only- `Detection Alerts`: Detection alerts only                                                                                          |
| `favorite`                | [favorite[]](#favorite-obj)          | Indicates when and who marked aTimeline as a favorite.                                                                                                                                                                                     |
| `filters`                 | [filters[]](#filters-obj)            | Filters usedin addition to the dropzone query.                                                                                                                                                                                             |
| `globalNotes`             | [globalNotes[]](#globalNotes-obj)    | Global notes added to the Timeline.                                                                                                                                                                                                        |
| `kqlMode`                 | String                               | Indicates whether the KQL bar filters the dropzone query results or searches for additional results, where:- `filter`: filters dropzone query results- `search`: displays additional search results                                        |
| `kqlQuery`                | [kqlQuery](#kqlQuery-obj)            | KQL barquery.                                                                                                                                                                                                                              |
| `pinnedEventIds`          | pinnedEventIds[]                     | IDs of events pinned to the Timeline’ssearch results.                                                                                                                                                                                      |
| `savedObjectId`           | String                               | The Timeline’s saved object ID.                                                                                                                                                                                                            |
| `savedQueryId`            | String                               | If used, the saved query ID used to filter or searchdropzone query results.                                                                                                                                                                |
| `sort`                    | sort                                 | Object indicating how rows are sorted in the Timeline’s grid:- `columnId` (string): The ID of the column used to sort results.- `sortDirection` (string): The sort direction, which can be either `desc` or `asc`.                         |
| `templateTimelineId`      | String                               | A unique ID (UUID) for Timeline templates. For Timelines, the value is `null`.                                                                                                                                                             |
| `templateTimelineVersion` | Integer                              | Timeline template version number. ForTimelines, the value is `null`.                                                                                                                                                                       |
| `timelineType`            | String                               | Indicates whether the Timeline is a template or not, where:- `default`: Indicates a Timeline used to actively investigate events.- `template`: Indicates a Timeline template used when detection rule alerts are investigated in Timeline. |
| `title`                   | String                               | The Timeline’s title.                                                                                                                                                                                                                      |
| `updated`                 | Float                                | The last time the Timeline was updated, using a13-digit Epoch timestamp.                                                                                                                                                                   |
| `updatedBy`               | String                               | The user who last updated the Timeline.                                                                                                                                                                                                    |
| `version`                 | String                               | The Timeline’s version.                                                                                                                                                                                                                    |


## columns object


| Name           | Type    | Description                                                                                                                                           |
|----------------|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| `aggregatable` | Boolean | Indicates whether the field can be aggregated acrossall indices (used to sort columns in the UI).                                                     |
| `category`     | String  | The ECS field set to which the field belongs.                                                                                                         |
| `description`  | String  | UI column field description tooltip.                                                                                                                  |
| `example`      | String  | UI column field example tooltip.                                                                                                                      |
| `indexes`      | String  | Security indices in which the field exists and has the sameElasticsearch type. `null` when all the security indices have the field with the sametype. |
| `id`           | String  | ECS field name, displayed as the column header in the UI.                                                                                             |
| `type`         | String  | The field’s type.                                                                                                                                     |


## dataProviders object


| Name         | Type            | Description                                                                                                                                                                                                                                                                                     |
|--------------|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `and`        | dataProviders[] | Array containing dropzone query clauses using `AND`logic.                                                                                                                                                                                                                                       |
| `enabled`    | Boolean         | Indicates if the dropzone query clause is enabled.                                                                                                                                                                                                                                              |
| `excluded`   | Boolean         | Indicates if the dropzone query clause uses `NOT` logic.                                                                                                                                                                                                                                        |
| `id`         | String          | The dropzone query clause’s unique ID.                                                                                                                                                                                                                                                          |
| `name`       | String          | The dropzone query clause’s name (the clause’s valuewhen Timelines are exported from the UI).                                                                                                                                                                                                   |
| `queryMatch` | queryMatch      | The dropzone query clause:- `field` (string): The field used to search Security indices.- `operator` (string): The clause’s operator, which can be:    - `:` - The `field` has the specified `value`.    - `:*` - The field exists.- `value` (string): The field’s value used to match results. |


## eventNotes object


| Name         | Type   | Description                                                          |
|--------------|--------|----------------------------------------------------------------------|
| `created`    | Float  | The time the note was created, using a 13-digit Epochtimestamp.      |
| `createdBy`  | String | The user who added the note.                                         |
| `eventId`    | String | The ID of the event to which the note was added.                     |
| `note`       | String | The note’s text.                                                     |
| `noteId`     | String | The note’s ID                                                        |
| `timelineId` | String | The ID of the Timeline to which the note was added.                  |
| `updated`    | Float  | The last time the note was updated, using a13-digit Epoch timestamp. |
| `updatedBy`  | String | The user who last updated the note.                                  |
| `version`    | String | The note’s version.                                                  |


## favorite object


| Name           | Type   | Description                                                                      |
|----------------|--------|----------------------------------------------------------------------------------|
| `favoriteDate` | Float  | The time the Timeline was marked as a favorite, using a13-digit Epoch timestamp. |
| `fullName`     | String | The full name of the user who marked the Timeline asa favorite.                  |
| `keySearch`    | String | `userName` encoded in Base64.                                                    |
| `userName`     | String | The Kibana username of the user who marked theTimeline as a favorite.            |


## filters object


| Name        | Type   | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|-------------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `exists`    | String | [Exists term query](https://www.elastic.co/docs/reference/query-languages/query-dsl/query-dsl-exists-query) for thespecified field (`null` when undefined). For example, `{"field":"user.name"}`.                                                                                                                                                                                                                                                                                          |
| `meta`      | meta   | Filter details:- `alias` (string): UI filter name.- `disabled` (boolean): Indicates if the filter is disabled.- `key`(string): Field name or unique string ID.- `negate` (boolean): Indicates if the filter query clause uses `NOT` logic.- `params` (string): Value of `phrase` filter types.- `type` (string): Type of filter. For example, `exists` and `range`. For more information about filtering, see [Query DSL](https://www.elastic.co/docs/reference/query-languages/querydsl). |
| `match_all` | String | [Match all term query](https://www.elastic.co/docs/reference/query-languages/query-dsl/query-dsl-match-all-query)for the specified field (`null` when undefined).                                                                                                                                                                                                                                                                                                                          |
| `query`     | String | [DSL query](https://www.elastic.co/docs/reference/query-languages/querydsl) (`null` when undefined). Forexample, `{"match_phrase":{"ecs.version":"1.4.0"}}`.                                                                                                                                                                                                                                                                                                                               |
| `range`     | String | [Range query](https://www.elastic.co/docs/reference/query-languages/query-dsl/query-dsl-range-query) (`null` whenundefined). For example, `{"@timestamp":{"gte":"now-1d","lt":"now"}}"`.                                                                                                                                                                                                                                                                                                   |


## globalNotes object


| Name         | Type   | Description                                                          |
|--------------|--------|----------------------------------------------------------------------|
| `created`    | Float  | The time the note was created, using a 13-digit Epochtimestamp.      |
| `createdBy`  | String | The user who added the note.                                         |
| `note`       | String | The note’s text.                                                     |
| `noteId`     | String | The note’s ID                                                        |
| `timelineId` | String | The ID of the Timeline to which the note was added.                  |
| `updated`    | Float  | The last time the note was updated, using a13-digit Epoch timestamp. |
| `updatedBy`  | String | The user who last updated the note.                                  |
| `version`    | String | The note’s version.                                                  |


## kqlQuery object


| Name          | Type        | Description                                                                                                                                                                                                                                                                              |
|---------------|-------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `filterQuery` | filterQuery | Object containing query details:- `kuery`: Object containing the query’s clauses and type:    - `expression`(string): The query’s clauses.    - `kind` (string): The type of query, which can be `kuery` or `lucene`.- `serializedQuery` (string): The query represented in JSON format. |