> ## Documentation Index > Fetch the complete documentation index at: https://docs.watchdog.no/llms.txt > Use this file to discover all available pages before exploring further. # Complete Slack connection > Requires the initiating user’s Clerk session with the same active organization. Current membership, MFA, owner permission and initiating API-key authority are rechecked explicitly. State must match the initiating browser session and nonce. Slack codes are single-use; failed, repeated or expired completion requires a new attempt. No pending authorization or completion result is stored. ## OpenAPI ````yaml /openapi-preview.json post /v1/notifications/channels/slack/complete openapi: 3.1.0 info: title: Watchdog API (preview) version: 1.0.0 description: >- Development preview for agreements, price items, document relationships, canonical invoices, alerts and alert topics, claims and attached alerts, shared entity activity and comments, Document uploads, invoice imports, explicit invoice-agreement matching, and workflow runs. This contract is under development and is not served by api.watchdog.no. Request bodies are limited to 2 MiB (2,097,152 bytes), including all JSON fields and line data, except POST /v1/support/contact which permits 32 MiB for base64 attachments. File bytes are uploaded directly to storage. The existing public REST service retains its separate contract. servers: - url: http://localhost:3500 description: Local development Worker security: [] paths: /v1/notifications/channels/slack/complete: post: tags: - Notifications summary: Complete Slack connection description: >- Requires the initiating user’s Clerk session with the same active organization. Current membership, MFA, owner permission and initiating API-key authority are rechecked explicitly. State must match the initiating browser session and nonce. Slack codes are single-use; failed, repeated or expired completion requires a new attempt. No pending authorization or completion result is stored. operationId: completeNotificationSlack parameters: [] requestBody: required: true content: application/json: schema: type: object properties: state: type: string minLength: 1 maxLength: 4096 code: type: string minLength: 1 maxLength: 2048 browser_nonce: type: string pattern: ^[a-f0-9]{64}$ required: - state - code - browser_nonce additionalProperties: false responses: '200': description: >- Notification destination and connection. Delivery settings are in preferences; credentials are never returned. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/NotificationChannel' '400': description: >- Invalid request format, parameters, or body. Details contain up to 20 actionable field errors; the complete encoded request body must be at most 2 MiB (2,097,152 bytes). headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/Error_validation_error' example: error: code: validation_error message: >- Invalid request format, parameters, or body. Details contain up to 20 actionable field errors; the complete encoded request body must be at most 2 MiB (2,097,152 bytes). request_id: req_example '401': description: Missing or invalid bearer credential. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. WWW-Authenticate: schema: type: string required: false description: Bearer authentication challenge, when supplied. content: application/json: schema: $ref: '#/components/schemas/Error_invalid_token' example: error: code: invalid_token message: Missing or invalid bearer credential. request_id: req_example '403': description: >- Access denied: forbidden, token_disabled, organization_required, insufficient_role, or mfa_required. Check the error code and effective permissions. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: >- #/components/schemas/Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required example: error: code: forbidden message: >- Access denied: forbidden, token_disabled, organization_required, insufficient_role, or mfa_required. Check the error code and effective permissions. request_id: req_example '404': description: The resource does not exist in the current organization. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/Error_not_found' example: error: code: not_found message: The resource does not exist in the current organization. request_id: req_example '409': description: >- The channel or authorization cannot accept this operation. Read the error description before retrying. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/Error_conflict' example: error: code: conflict message: >- The channel or authorization cannot accept this operation. Read the error description before retrying. request_id: req_example '429': description: The IP or authenticated credential exceeded its request limit. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. Retry-After: schema: type: string example: '60' required: true description: Seconds to wait before retrying the request. content: application/json: schema: $ref: '#/components/schemas/Error_rate_limit_exceeded' example: error: code: rate_limit_exceeded message: >- The IP or authenticated credential exceeded its request limit. request_id: req_example '500': description: >- Unexpected server failure. Include the request ID when contacting support. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/Error_internal_error' example: error: code: internal_error message: >- Unexpected server failure. Include the request ID when contacting support. request_id: req_example '503': description: >- Authentication infrastructure is unavailable or rate limited. Honor Retry-After when provided. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. Retry-After: schema: type: string example: '60' required: true description: Seconds to wait before retrying the request. content: application/json: schema: $ref: '#/components/schemas/Error_service_unavailable' example: error: code: service_unavailable message: >- Authentication infrastructure is unavailable or rate limited. Honor Retry-After when provided. request_id: req_example security: - ClerkSessionBearer: [] components: schemas: NotificationChannel: type: object properties: id: type: string format: uuid type: type: string enum: - email - slack owner: type: string enum: - personal - organization destination: anyOf: - type: object properties: type: type: string enum: - email recipients: type: array items: type: string format: email required: - type - recipients - type: object properties: type: type: string enum: - slack channel_id: type: string channel_name: type: string required: - type - channel_id - channel_name - type: 'null' delivery_summary: type: object properties: days: type: number enum: - 30 events: type: integer suppliers: type: integer deadlines: type: integer required: - days - events - suppliers - deadlines required: - id - type - owner - destination - delivery_summary Error_validation_error: type: object properties: error: type: object properties: code: type: string enum: - validation_error message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_invalid_token: type: object properties: error: type: object properties: code: type: string enum: - invalid_token message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required: type: object properties: error: type: object properties: code: type: string enum: - forbidden - token_disabled - organization_required - insufficient_role - mfa_required message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_not_found: type: object properties: error: type: object properties: code: type: string enum: - not_found message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_conflict: type: object properties: error: type: object properties: code: type: string enum: - conflict message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_rate_limit_exceeded: type: object properties: error: type: object properties: code: type: string enum: - rate_limit_exceeded message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_internal_error: type: object properties: error: type: object properties: code: type: string enum: - internal_error message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_service_unavailable: type: object properties: error: type: object properties: code: type: string enum: - service_unavailable message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error securitySchemes: ClerkSessionBearer: type: http scheme: bearer description: Clerk session with an active organization. ````