> ## Documentation Index > Fetch the complete documentation index at: https://docs.shelfforce.ai/llms.txt > Use this file to discover all available pages before exploring further. # Update task > Updates mutable fields on a task. Status transitions are validated: pending -> in_progress, pending -> cancelled, in_progress -> completed, in_progress -> cancelled. ## OpenAPI ````yaml /openapi.json patch /api/v1/tasks/{id} openapi: 3.1.0 info: title: Shelfforce API version: 1.0.0 description: >- Shelfforce turns shelf photos into structured retail data. Submit images for AI-powered shelf analysis, manage tasks and inventory, and retrieve compliance and share-of-shelf reports. All API requests require a Bearer token (API key with `sf_live_` prefix). Rate limits are enforced per tier using a fixed 60-second window. Idempotency is supported on POST and PATCH via the `Idempotency-Key` header (24h TTL). 1 credit = 1 image analysis. Batch submissions consume 1 credit per image (max batch size depends on plan tier: 20-200). Tag analyses with `externalId` and `metadata` for B2B tracking, and use `callbackUrl` for per-request completion notifications. termsOfService: https://shelfforce.ai/terms contact: name: Shelfforce Support url: https://shelfforce.ai/support email: hey@shelfforce.ai license: name: Proprietary url: https://shelfforce.ai/terms servers: - url: https://shelfforce.ai description: Production security: - bearerAuth: [] tags: - name: Analyses description: Submit images for AI shelf analysis and retrieve results. - name: Products description: Browse products detected across analyses. - name: Places description: Manage store locations tied to your organisation. - name: Tasks description: Create and manage field data-collection tasks. - name: Inventory description: Maintain a master catalogue of expected SKUs. - name: Reports description: 'Aggregated analytics: share of shelf and store performance.' - name: Webhooks description: Register endpoints to receive real-time event notifications. - name: Usage description: Check credit balance, plan details, and rate-limit status. - name: Orders description: Create and manage purchase orders with line items. - name: Accounts description: Manage brand, supplier, distributor, and partner accounts. - name: Alerts description: >- Read and manage system-generated alerts. Alerts are created automatically — no POST endpoint. - name: Members description: >- List, invite, update, and remove organisation members. Admin role required for writes. paths: /api/v1/tasks/{id}: patch: tags: - Tasks summary: Update task description: >- Updates mutable fields on a task. Status transitions are validated: pending -> in_progress, pending -> cancelled, in_progress -> completed, in_progress -> cancelled. operationId: updateTask parameters: - name: id in: path required: true description: Task ID. schema: type: string examples: - tsk_xyz789 - $ref: '#/components/parameters/IdempotencyKey' requestBody: required: true content: application/json: schema: type: object minProperties: 1 properties: status: type: string enum: - pending - in_progress - completed - cancelled description: New status. Must follow valid transition rules. examples: - in_progress assignedTo: type: string description: User ID to reassign the task to. examples: - usr_qrs789 notes: type: string description: Updated notes. examples: - Completed verification. Display looks correct. dueDate: type: string format: date description: Updated due date. examples: - '2026-03-20' additionalProperties: false responses: '200': description: Task updated. headers: X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' X-Request-Id: $ref: '#/components/headers/X-Request-Id' content: application/json: schema: type: object required: - data properties: data: type: object required: - id - title - status - updatedAt properties: id: type: string examples: - tsk_xyz789 title: type: string examples: - 'Check Coca-Cola facing at Walmart #4523' status: type: string enum: - pending - in_progress - completed - cancelled examples: - in_progress placeId: type: - string - 'null' examples: - pl_abc123 assignedTo: type: - string - 'null' examples: - usr_qrs789 dueDate: type: - string - 'null' format: date examples: - '2026-03-20' notes: type: - string - 'null' examples: - Completed verification. updatedAt: type: string format: date-time examples: - '2026-02-23T11:00:00Z' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' '422': $ref: '#/components/responses/ValidationFailed' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalError' components: parameters: IdempotencyKey: name: Idempotency-Key in: header required: false description: >- Unique key for idempotent requests. If a request with the same key was already processed within the last 24 hours, the cached response is returned with `X-Idempotent-Replayed: true`. schema: type: string examples: - idk_550e8400-e29b-41d4-a716-446655440000 headers: X-RateLimit-Limit: description: Maximum number of requests allowed in the current 60-second window. schema: type: integer examples: - 120 X-RateLimit-Remaining: description: Number of requests remaining in the current window. schema: type: integer examples: - 117 X-RateLimit-Reset: description: Unix timestamp (seconds) when the current rate-limit window resets. schema: type: integer examples: - 1740300060 X-Request-Id: description: Unique identifier for this request. Include in support tickets. schema: type: string format: uuid examples: - 550e8400-e29b-41d4-a716-446655440000 responses: Unauthorized: description: Authentication failed. Provide a valid API key as a Bearer token. headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string enum: - AUTH_REQUIRED - INVALID_API_KEY examples: - INVALID_API_KEY message: type: string examples: - The provided API key is invalid or has been revoked. NotFound: description: The requested resource does not exist. headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string const: NOT_FOUND examples: - NOT_FOUND message: type: string examples: - Analysis 'an_g7h8j9k0' not found. ValidationFailed: description: Request body or query parameters failed validation. headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string const: VALIDATION_FAILED examples: - VALIDATION_FAILED message: type: string examples: - The 'imageUrl' field must be a valid URL. RateLimited: description: Too many requests. Wait until the rate-limit window resets. headers: Retry-After: description: Seconds until the rate-limit window resets. schema: type: integer examples: - 12 X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' X-Request-Id: $ref: '#/components/headers/X-Request-Id' content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string const: RATE_LIMITED examples: - RATE_LIMITED message: type: string examples: - Rate limit exceeded. Retry after 12 seconds. InternalError: description: An unexpected server error occurred. headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string const: INTERNAL_ERROR examples: - INTERNAL_ERROR message: type: string examples: - >- An unexpected error occurred. Please try again or contact support with request ID. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: API Key description: >- API key with `sf_live_` prefix. Pass as `Authorization: Bearer sf_live_...` ````