---
title: "Retrieves the change history of a backlog item"
method: GET
path: "/api/history/backlog_items/{id}"
tags: ["History and Change Tracking"]
---

# Retrieves the change history of a backlog item

`GET /api/history/backlog_items/{id}`

## Request

- Base URL: `https://api.atono.io`
- URL: `https://api.atono.io/api/history/backlog_items/{id}`
- Auth: API key in header `X-API-KEY`

Retrieves the change history of a backlog item identified by the given ID. The history is paginated and can be filtered by the field that has changed, The filter[changed] parameter supports multiple fields separated by `&` (%26).

## Path parameters

- `id` string, uuid, required

## Query parameters

- `filter` BacklogItemHistoryFilter, required
  - `changed` string, nullable
  - `originalAssignee` string, uuid, nullable
  - `modifiedAssignee` string, uuid, nullable
  - `originalCreator` string, uuid, nullable
  - `modifiedCreator` string, uuid, nullable
  - `originalTeam` string, uuid, nullable
  - `modifiedTeam` string, uuid, nullable
  - `containsText` string, nullable
  - `source` string, nullable
- `page` PageFilter, required
  - `page[number]` integer, nullable: Returns a specific page of results, starting from page `0`. Use with `page[size]` to control how many items are returned per page. For example, if `page[size]` is `20`, then `page[number]=2` returns items 21-40.
  - `page[size]` integer, nullable: Controls how many items are returned in each response page.
  - `page[offset]` integer, nullable: Skips the specified number of items before starting the result set. For example, if `page[offset]` is `30` and `page[size]` is `10`, the response returns items 31-40.
- `sort` string[], required

## Response `200`

backlogItemHistory 200 response

- MultiResourceBodyBacklogItemChangeSetResource
  - `data` BacklogItemChangeSetResource[]: A list of returned resources, based on the request.
    - `type` string, required
    - `id` string, uuid, required
    - `attributes` BacklogItemChangeSetResourceBacklogItemChangeSetAttributes, required
      - `snapshot` BacklogItemSnapshot, required: A shortened self-contained version of the BacklogItem for the purpose of storing a snapshot of the item at a point in time. It does not store the fields that never change or references to other objects that are not shown in the change deep dive UI.
        - `title` string, required
        - `content` ContentChunk[], required
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
        - `additionalContent` ContentChunk[], required
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
        - `acceptanceCriteria` AcceptanceCriterionSnapshot[], required
          - `id` string, uuid, required
          - `description` string, required
          - `position` integer, required
          - `level` integer, required
      - `isCreation` boolean, required
      - `title` TextFieldChangeSet, required
        - `original` string, required
        - `modified` string, required
        - `changes` TextChange[], required
          - `state` 'INITIAL' | 'INSERT' | 'DELETE' | 'KEEP', required
          - `content` string, required
      - `position` SimpleFieldChangeSetInteger, required
        - `original` integer, required
        - `modified` integer, required
      - `workflowStep` SimpleFieldChangeSetWorkflowStepSnapshot, required
        - `original` WorkflowStepSnapshot, required: A snapshot of the workflow step
          - `id` string, uuid, required
          - `name` string, required
          - `stepType` 'TODO' | 'DESIGN' | 'DEV' | 'TEST' | 'REVIEW' | 'DONE' | 'WONTDO' | 'REPORTED' | 'INFO_REQUIRED' | 'CUSTOM', required: The high-level classification of the workflow step. Determines the default color shown in the Atono application if no custom color is set, and helps identify the most appropriate step to move items to when a step is deleted or the workflow is reset.
          - `category` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The category of the workflow step. Valid values are `TODO` (To do), `IN_PROGRESS` (In progress), `DONE` (Done), or `WONT_DO` (Won't do). The category determines the general stage of work items in this step.
          - `color` string, required
        - `modified` WorkflowStepSnapshot, required: A snapshot of the workflow step
          - `id` string, uuid, required
          - `name` string, required
          - `stepType` 'TODO' | 'DESIGN' | 'DEV' | 'TEST' | 'REVIEW' | 'DONE' | 'WONTDO' | 'REPORTED' | 'INFO_REQUIRED' | 'CUSTOM', required: The high-level classification of the workflow step. Determines the default color shown in the Atono application if no custom color is set, and helps identify the most appropriate step to move items to when a step is deleted or the workflow is reset.
          - `category` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The category of the workflow step. Valid values are `TODO` (To do), `IN_PROGRESS` (In progress), `DONE` (Done), or `WONT_DO` (Won't do). The category determines the general stage of work items in this step.
          - `color` string, required
      - `assignee` SimpleFieldChangeSetUUID, required
        - `original` string, uuid, required
        - `modified` string, uuid, required
      - `creator` SimpleFieldChangeSetUUID, required
        - `original` string, uuid, required
        - `modified` string, uuid, required
      - `team` SimpleFieldChangeSetUUID, required
        - `original` string, uuid, required
        - `modified` string, uuid, required
      - `featureFlag` SimpleFieldChangeSetFeatureFlagHistoricalIdentifier, required
        - `original` FeatureFlagHistoricalIdentifier, required
          - `id` string, uuid, required
          - `key` string, required
        - `modified` FeatureFlagHistoricalIdentifier, required
          - `id` string, uuid, required
          - `key` string, required
      - `featureFlagState` FlagRulesetChangeSet, required: A representation of a feature flag ruleset change.
        - `featureFlagId` FeatureFlagHistoricalIdentifier, required
          - `id` string, uuid, required
          - `key` string, required
        - `original` FlagRulesetSnapshot, required: A historical representation of a feature flag ruleset per environment.
          - `id` string, uuid, required
          - `defaultVariant` string, required
          - `slices` FlagRulesetSnapshotSlice[], required
            - `targeting` unknown, required
            - `variant` string, required
        - `modified` FlagRulesetSnapshot, required: A historical representation of a feature flag ruleset per environment.
          - `id` string, uuid, required
          - `defaultVariant` string, required
          - `slices` FlagRulesetSnapshotSlice[], required
            - `targeting` unknown, required
            - `variant` string, required
        - `stateChange` SimpleFieldChangeSetString, required
          - `original` string, required
          - `modified` string, required
        - `environmentCode` EnvironmentHistoricalIdentifier, required
          - `id` string, uuid, required
          - `code` string, required
      - `content` CollectionFieldChangeSetBacklogItemContentChunkBacklogItemContentChunk, required
        - `original` ContentChunk[], required
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
        - `modified` ContentChunk[], required
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
        - `changes` ContentChunk[], nullable
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
      - `additionalContent` CollectionFieldChangeSetBacklogItemContentChunkBacklogItemContentChunk, required
        - `original` ContentChunk[], required
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
        - `modified` ContentChunk[], required
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
        - `changes` ContentChunk[], nullable
          - `type` 'DISPLAY_HTML' | 'TEXT' | 'PERSONA', required: The type of content chunk. - `DISPLAY_HTML`: HTML-formatted content. - `TEXT`: Plain text content. - `PERSONA`: A persona for a user story.
          - `value` string, required: The content in this chunk.
      - `acceptanceCriteria` CollectionFieldChangeSetAcceptanceCriterionSnapshotAcceptanceCriterionChangeSet, required
        - `original` AcceptanceCriterionSnapshot[], required
          - `id` string, uuid, required
          - `description` string, required
          - `position` integer, required
          - `level` integer, required
        - `modified` AcceptanceCriterionSnapshot[], required
          - `id` string, uuid, required
          - `description` string, required
          - `position` integer, required
          - `level` integer, required
        - `changes` AcceptanceCriterionChangeSet[], nullable
          - `id` string, uuid, required
          - `state` 'CREATE' | 'DELETE' | 'UPDATE' | 'KEEP', required
          - `description` TextFieldChangeSet, required
            - `original` string, required
            - `modified` string, required
            - `changes` TextChange[], required
              - …
          - `position` SimpleFieldChangeSetInteger, required
            - `original` integer, required
            - `modified` integer, required
          - `level` SimpleFieldChangeSetInteger, required
            - `original` integer, required
            - `modified` integer, required
      - `triage` SimpleFieldChangeSetBugTriageSnapshot, required
        - `original` BugTriageSnapshot, required: A snapshot of the bug triage state and risk rating
          - `triage` 'NOT_TRIAGED' | 'TRIAGED' | 'REJECTED' | 'INFO_REQUIRED', required
          - `riskRating` BacklogItemRiskRating, required
            - `rating` integer, required
            - `impact` integer, required
            - `probability` integer, required
          - `impact` Impact, required
            - `id` integer, required
            - `name` string, required
            - `value` integer, required
          - `probability` Probability, required
            - `id` integer, required
            - `name` string, required
            - `value` integer, required
          - `aiSuggested` boolean, nullable
        - `modified` BugTriageSnapshot, required: A snapshot of the bug triage state and risk rating
          - `triage` 'NOT_TRIAGED' | 'TRIAGED' | 'REJECTED' | 'INFO_REQUIRED', required
          - `riskRating` BacklogItemRiskRating, required
            - `rating` integer, required
            - `impact` integer, required
            - `probability` integer, required
          - `impact` Impact, required
            - `id` integer, required
            - `name` string, required
            - `value` integer, required
          - `probability` Probability, required
            - `id` integer, required
            - `name` string, required
            - `value` integer, required
          - `aiSuggested` boolean, nullable
      - `createdAt` string, date-time, required
      - `comment` CommentChangeSet, required
        - `id` string, uuid, required
        - `content` TextFieldChangeSet, required
          - `original` string, required
          - `modified` string, required
          - `changes` TextChange[], required
            - `state` 'INITIAL' | 'INSERT' | 'DELETE' | 'KEEP', required
            - `content` string, required
        - `status` SimpleFieldChangeSetCommentStatus, required
          - `original` 'ACTIVE' | 'DELETED' | 'ADDRESSED' | 'REJECTED', required
          - `modified` 'ACTIVE' | 'DELETED' | 'ADDRESSED' | 'REJECTED', required
        - `originalAuthor` string, uuid, required
        - `originalCreatedAt` string, date-time, required
      - `attachment` AttachmentChangeSet[], required
        - `state` 'CREATE' | 'DELETE', required
        - `path` string, required
        - `fileName` string, required
        - `thumbnail` string, required
      - `size` SimpleFieldChangeSetItemSizeIdentifier, required
        - `original` ItemSizeIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
          - `sizeSuggested` boolean, required
        - `modified` ItemSizeIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
          - `sizeSuggested` boolean, required
      - `cycleTimeMode` SimpleFieldChangeSetBacklogItemCycleTimeMode, required
        - `original` 'NORMAL' | 'OUTLIER', required
        - `modified` 'NORMAL' | 'OUTLIER', required
      - `environment` CollectionFieldChangeSetEnvironmentHistoricalIdentifierEnvironmentHistoricalIdentifier, required
        - `original` EnvironmentHistoricalIdentifier[], required
          - `id` string, uuid, required
          - `code` string, required
        - `modified` EnvironmentHistoricalIdentifier[], required
          - `id` string, uuid, required
          - `code` string, required
        - `changes` EnvironmentHistoricalIdentifier[], nullable
          - `id` string, uuid, required
          - `code` string, required
      - `linkedItems` CollectionFieldDiffChangeSetHistoricalIdentifier, required
        - `added` HistoricalIdentifier[], required
          - `id` string, uuid, required
          - `label` string, required
        - `removed` HistoricalIdentifier[], required
          - `id` string, uuid, required
          - `label` string, required
      - `epicItems` CollectionFieldDiffChangeSetHistoricalIdentifier, required
        - `added` HistoricalIdentifier[], required
          - `id` string, uuid, required
          - `label` string, required
        - `removed` HistoricalIdentifier[], required
          - `id` string, uuid, required
          - `label` string, required
      - `timebox` SimpleFieldChangeSetHistoricalIdentifier, required
        - `original` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
        - `modified` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
      - `tagValues` CollectionFieldDiffChangeSetHistoricalIdentifier, required
        - `added` HistoricalIdentifier[], required
          - `id` string, uuid, required
          - `label` string, required
        - `removed` HistoricalIdentifier[], required
          - `id` string, uuid, required
          - `label` string, required
      - `productTheme` SimpleFieldChangeSetHistoricalIdentifier, required
        - `original` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
        - `modified` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
      - `changeContext` ContextChangeSet[], required
        - `rationale` 'TEAM_DELETION' | 'WORKFLOW_STEP_DELETION' | 'WORKFLOW_STEP_ITEM_TYPE_UPDATE' | 'WORKFLOW_RESET' | 'TEAM_WORKFLOW_TYPE_TO_KANBAN' | 'TEAM_WORKFLOW_TYPE_TO_SCRUM', required
        - `step` SimpleFieldChangeSetWorkflowStepSnapshot, required
          - `original` WorkflowStepSnapshot, required: A snapshot of the workflow step
            - `id` string, uuid, required
            - `name` string, required
            - `stepType` 'TODO' | 'DESIGN' | 'DEV' | 'TEST' | 'REVIEW' | 'DONE' | 'WONTDO' | 'REPORTED' | 'INFO_REQUIRED' | 'CUSTOM', required: The high-level classification of the workflow step. Determines the default color shown in the Atono application if no custom color is set, and helps identify the most appropriate step to move items to when a step is deleted or the workflow is reset.
            - `category` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The category of the workflow step. Valid values are `TODO` (To do), `IN_PROGRESS` (In progress), `DONE` (Done), or `WONT_DO` (Won't do). The category determines the general stage of work items in this step.
            - `color` string, required
          - `modified` WorkflowStepSnapshot, required: A snapshot of the workflow step
            - `id` string, uuid, required
            - `name` string, required
            - `stepType` 'TODO' | 'DESIGN' | 'DEV' | 'TEST' | 'REVIEW' | 'DONE' | 'WONTDO' | 'REPORTED' | 'INFO_REQUIRED' | 'CUSTOM', required: The high-level classification of the workflow step. Determines the default color shown in the Atono application if no custom color is set, and helps identify the most appropriate step to move items to when a step is deleted or the workflow is reset.
            - `category` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The category of the workflow step. Valid values are `TODO` (To do), `IN_PROGRESS` (In progress), `DONE` (Done), or `WONT_DO` (Won't do). The category determines the general stage of work items in this step.
            - `color` string, required
        - `team` SimpleFieldChangeSetHistoricalIdentifier, required
          - `original` HistoricalIdentifier, required
            - `id` string, uuid, required
            - `label` string, required
          - `modified` HistoricalIdentifier, required
            - `id` string, uuid, required
            - `label` string, required
      - `importMetadata` SimpleFieldChangeSetBacklogItemImportMetadata, required
        - `original` BacklogItemImportMetadata, required
          - `importSource` 'LINEAR' | 'JIRA' | 'JIRA_SYNC' | 'SAMPLE_DATA' | 'ATONO_IMPORT', required
          - `itemId` string, required
          - `itemLabels` string, required
          - `itemPriority` string, required
          - `itemSize` string, required
          - `team` string, required
          - `sampleData` boolean, required
          - `syncStatus` 'IN_PROGRESS' | 'COMPLETED' | 'FAILED' | 'JIRA_NEWER' | 'UNSYNCED', required
          - `syncDate` string, date-time, required
          - `jiraUpdatedAt` string, date-time, required
        - `modified` BacklogItemImportMetadata, required
          - `importSource` 'LINEAR' | 'JIRA' | 'JIRA_SYNC' | 'SAMPLE_DATA' | 'ATONO_IMPORT', required
          - `itemId` string, required
          - `itemLabels` string, required
          - `itemPriority` string, required
          - `itemSize` string, required
          - `team` string, required
          - `sampleData` boolean, required
          - `syncStatus` 'IN_PROGRESS' | 'COMPLETED' | 'FAILED' | 'JIRA_NEWER' | 'UNSYNCED', required
          - `syncDate` string, date-time, required
          - `jiraUpdatedAt` string, date-time, required
      - `restoreVersion` string, uuid, required
      - `vcsPullRequests` VcsPullRequest[], required
        - `repository` string, required
        - `repositoryUrl` string, required
        - `title` string, required
        - `url` string, required
        - `externalId` string, required
        - `openerUser` string, required
        - `isAdd` boolean, required
        - `mention` 'TITLE' | 'DESCRIPTION' | 'COMMENT' | 'BRANCH_NAME' | 'COMMIT_MESSAGE', required
        - `mentions` VcsPullRequestMention[], required
        - `changeReason` 'OPENED' | 'REOPENED' | 'MERGED' | 'CLOSED', required
      - `userAgent` string, required
      - `sprint` SimpleFieldChangeSetHistoricalIdentifier, required
        - `original` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
        - `modified` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
      - `splitStory` BacklogItemSplitSnapshot, required: A self-contained record of the information that goes into the split of the story. Records the direction of the split as well.
        - `otherStoryId` string, uuid, required
        - `otherStoryTitle` string, required
        - `otherStoryHandle` string, required
      - `subtasks` CollectionFieldChangeSetSubtaskSnapshotSubtaskChangeSet, required
        - `original` SubtaskSnapshot[], required
          - `id` string, uuid, required
          - `title` string, required
          - `step` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The current completion step of the subtask. One of `TODO`, `IN_PROGRESS`, `DONE`, or `WONT_DO`.
          - `assigneeId` string, uuid, required
        - `modified` SubtaskSnapshot[], required
          - `id` string, uuid, required
          - `title` string, required
          - `step` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The current completion step of the subtask. One of `TODO`, `IN_PROGRESS`, `DONE`, or `WONT_DO`.
          - `assigneeId` string, uuid, required
        - `changes` SubtaskChangeSet[], nullable
          - `id` string, uuid, required
          - `state` 'CREATE' | 'DELETE' | 'UPDATE', required
          - `title` TextFieldChangeSet, required
            - `original` string, required
            - `modified` string, required
            - `changes` TextChange[], required
              - …
          - `step` SimpleFieldChangeSetSubtaskStep, required
            - `original` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The current completion step of the subtask. One of `TODO`, `IN_PROGRESS`, `DONE`, or `WONT_DO`.
            - `modified` 'TODO' | 'IN_PROGRESS' | 'DONE' | 'WONT_DO', required: The current completion step of the subtask. One of `TODO`, `IN_PROGRESS`, `DONE`, or `WONT_DO`.
          - `assignee` SimpleFieldChangeSetUUID, required
            - `original` string, uuid, required
            - `modified` string, uuid, required
      - `review` SimpleFieldChangeSetHistoricalIdentifier, required
        - `original` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
        - `modified` HistoricalIdentifier, required
          - `id` string, uuid, required
          - `label` string, required
    - `relationships` BacklogItemChangeSetResourceBacklogItemChangeSetRelationships, required
      - `backlogItem` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `actor` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalAssignee` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `modifiedAssignee` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalCreator` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `modifiedCreator` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalTeam` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `modifiedTeam` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `featureFlagsReference` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalCommentAuthor` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `linkedItemsAdded` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `linkedItemsRemoved` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `epicItemsAdded` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `epicItemsRemoved` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalTimebox` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `modifiedTimebox` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `tagValuesAdded` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `tagValuesRemoved` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalProductTheme` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `modifiedProductTheme` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `duplicatedFromBacklogItem` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `originalSprint` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `modifiedSprint` SingleRelationship, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
      - `subtaskAssigneesReference` MultipleRelationships, required
        - `links` RelationshipLinks, required
          - `self` string, uri, nullable, required
          - `related` string, uri, nullable, required
        - `data` ResourceIdentifier[], nullable, required
          - `type` string, required: Identifies the type of the linked resource.
          - `id` string, required: The unique identifier of the linked resource.
        - `meta` unknown, required
  - `errors` ProblemDetail[]: A list of errors returned with the response, if the request could not be completed. Each object includes details about a specific issue.
    - `id` string: A unique identifier for this specific error occurrence. Useful for debugging and support.
    - `links` object, nullable: Links related to the error. May include a URL to relevant documentation or support resources.
    - `status` integer: The HTTP status code associated with the error (e.g., 400, 404, 422).
    - `code` string: An internal code that identifies the type or category of the error.
    - `title` string: A short summary of the problem.
    - `source` ProblemSource: Identifies the part of the request that caused the error. Only one source is present per error.
      - `pointer` string, nullable: Specifies the path to the field in the request body that caused the error.
      - `parameter` string, nullable: Identifies a query parameter in the request URL that caused the error.
      - `header` string, nullable: Identifies the request header that caused the error.
    - `detail` string: Additional information about the error, intended to provide more context than the title.
    - `meta` unknown
  - `meta` unknown
  - `included` unknown[]: A list of related resources included in the response, either automatically by the API or in response to an `include` parameter in the request. Each item contains a full resource object (e.g., users, teams, acceptance criteria).
    - unknown
  - `links` unknown

---

[API](https://skmtc.dev/atono/apis/backend-api.md) · [All operations](https://skmtc.dev/atono/apis/backend-api/llms.txt) · [OpenAPI document](https://skmtc.dev/atono/apis/backend-api/revisions/78a57b1d8c3d?raw)