> ## Documentation Index > Fetch the complete documentation index at: https://docs.go.aiinsurance.io/llms.txt > Use this file to discover all available pages before exploring further. # Update Task > Partially updates a task. Send only the fields you want to change — omitted fields are left unchanged. `assignees`, when provided, replaces the existing assignee list and must reference users in the same company — a non-member user ID is rejected with a `400` error. **Required permission:** `company.task:update` ## OpenAPI ````yaml /openapi/generated-external-api.yaml patch /api/v1/companies/{companyId}/tasks/{taskId} openapi: 3.0.3 info: title: AI Insurance External API description: External API for AI Insurance platform version: 1.0.0 contact: email: support@aiinsurance.io servers: - url: https://go.aiinsurance.io description: Production security: - ApiKeyAuth: [] paths: /api/v1/companies/{companyId}/tasks/{taskId}: patch: tags: - Tasks summary: Update Task description: > Partially updates a task. Send only the fields you want to change — omitted fields are left unchanged. `assignees`, when provided, replaces the existing assignee list and must reference users in the same company — a non-member user ID is rejected with a `400` error. **Required permission:** `company.task:update` operationId: updateTask parameters: - $ref: '#/components/parameters/companyId' - $ref: '#/components/parameters/taskId' requestBody: required: true content: application/json: schema: type: object description: Any subset of the task's mutable fields properties: name: type: string description: Task name description: type: string description: Task description status: type: string enum: - Not Complete - Complete description: Task completion status deadline: type: string format: date-time description: Task deadline as an ISO 8601 date-time string entity: type: object nullable: true description: | Entity to link the task to, or `null` to unlink it. required: - type - id - name properties: type: type: string description: Type of the related entity id: type: string format: uuid description: Identifier of the related entity name: type: string description: Display name of the related entity assignees: type: array description: >- Company user IDs to assign the task to (replaces the existing list) items: type: string examples: markComplete: summary: Mark a task complete value: status: Complete reassign: summary: Rename and reassign value: name: Review updated claim documents assignees: - 550e8400-e29b-41d4-a716-446655440999 unlinkEntity: summary: Unlink the related entity value: entity: null responses: '200': description: Task updated successfully content: application/json: schema: $ref: '#/components/schemas/Task' examples: success: summary: Updated task value: id: 550e8400-e29b-41d4-a716-446655440300 name: Review updated claim documents description: Confirm all loss-run reports are attached status: Complete deadline: '2026-07-01T17:00:00.000Z' entity: type: Claim id: 550e8400-e29b-41d4-a716-446655440100 name: 'Claim #1042' assignees: - 550e8400-e29b-41d4-a716-446655440999 createdBy: 550e8400-e29b-41d4-a716-446655440999 createdAt: '2026-06-01T10:30:00.000Z' updatedAt: '2026-06-02T14:00:00.000Z' '400': description: Bad Request - Validation error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: invalidStatus: summary: Invalid status value value: error: code: InvalidProperties message: 'status: Value is not among the list of allowed values' userMessages: - Value is not among the list of allowed values details: - field: status message: Value is not among the list of allowed values invalidAssignee: summary: Assignee is not a company member value: error: code: task-invalid-assignees message: >- An error occurred - please contact support, the technical details are: Assignee user id(s) not in company ea03efb6-9360-4149-a8ca-cf93b69fd0f8: 11111111-2222-4333-8444-555555555555 userMessages: - >- An error occurred - please contact support, the technical details are: Assignee user id(s) not in company ea03efb6-9360-4149-a8ca-cf93b69fd0f8: 11111111-2222-4333-8444-555555555555 '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': description: Task not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: taskNotFound: summary: Task not found value: error: code: NotFoundError message: Task not found userMessages: - Task not found '500': $ref: '#/components/responses/InternalServerError' components: parameters: companyId: name: companyId in: path required: true schema: type: string format: uuid description: Company identifier taskId: name: taskId in: path required: true schema: type: string format: uuid description: Task identifier schemas: Task: type: object description: A task entity. required: - id - name - description - status - deadline - entity - assignees - createdBy - createdAt - updatedAt properties: id: type: string format: uuid description: Task identifier name: type: string description: Task name description: type: string description: Task description (empty string if none) status: type: string enum: - Not Complete - Complete description: Task completion status deadline: type: string format: date-time description: Task deadline as an ISO 8601 date-time string entity: type: object nullable: true description: > Snapshot of the entity this task is linked to (e.g. a claim or policy), or `null` when the task is not linked to any entity. required: - type - id - name properties: type: type: string description: Type of the related entity id: type: string format: uuid description: Identifier of the related entity name: type: string description: Display name of the related entity at the time of linking assignees: type: array description: Company user IDs the task is assigned to items: type: string createdBy: type: string nullable: true description: User ID who created the task createdAt: type: string format: date-time description: When the task was created updatedAt: type: string format: date-time description: When the task was last updated ErrorResponse: type: object description: Standard error response for all external API endpoints required: - error properties: error: type: object required: - code - message properties: code: type: string description: Machine-readable error code example: VALIDATION_ERROR message: type: string description: Human-readable error message example: 'submissionId: Required field is missing' userMessages: type: array description: >- Clean, verbatim-displayable messages — one entry per failure, free of error-code tags, field paths, and internal noise. Suitable for showing to end users as-is. items: type: string example: - Exposures of type 'company' require an address details: type: array description: Additional details for validation errors (field-level errors) items: type: object properties: field: type: string description: The field that caused the error example: submissionId message: type: string description: Description of the field error example: Required field is missing responses: Unauthorized: description: Unauthorized - Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: missingApiKey: summary: Missing API key value: error: code: AuthenticationError message: API key authentication required userMessages: - API key authentication required invalidApiKey: summary: >- Invalid API key (e.g. unknown key, or a Bearer token used instead of an API key) value: error: code: AuthenticationError message: Invalid API key userMessages: - Invalid API key Forbidden: description: Forbidden - Insufficient permissions content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: insufficientPermissions: summary: Insufficient permissions value: error: code: AuthorizationError message: User is not authorized to perform the requested action userMessages: - User is not authorized to perform the requested action companyMismatch: summary: A valid API key naming another company in the URL value: error: code: AuthorizationError message: API key is not scoped to the requested company userMessages: - API key is not scoped to the requested company InternalServerError: description: Internal Server Error - Unexpected error occurred content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: internalError: summary: Unexpected server error value: error: code: UncaughtActionError message: Uncaught error occurred in userMessages: - An unexpected error occurred. Please try again later. securitySchemes: ApiKeyAuth: type: apiKey in: header name: Authorization description: >- API key authentication. Send your raw API key as the `Authorization` header value with NO scheme prefix — `Authorization: YOUR-API-KEY`. Do NOT prefix it with `Bearer ` or `ApiKey `, and do not use an `X-API-Key` header; those are not accepted. ````