generated: '2026-08-12'
method: searched
source: https://experienceleague.adobe.com/en/docs/workfront/using/adobe-workfront-api/api-general-information/api-basics
docs:
- https://experienceleague.adobe.com/en/docs/workfront/using/adobe-workfront-api/api-general-information/api-basics
- https://experienceleague.adobe.com/en/docs/workfront/using/adobe-workfront-planning/adobe-workfront-planning-general-information/planning-api-basics
limit_count: 9
note: 'Workfront publishes hard query and payload limits, but no numeric request-rate quota and no
  rate-limit response headers. The core API "limits concurrent API threads" without stating the
  thread count, and the Event Subscription service will sandbox a user producing events too fast
  without publishing the threshold. The Planning API documents a 429 status but no RateLimit-* or
  Retry-After header. For an agent this means the runtime signal is missing: exhaustion is only
  discoverable by hitting it.'
limits:
- id: default-page-size
  api: Adobe Workfront API (/attask/api)
  scope: per-query
  limit: 100
  unit: primary objects
  description: If no $$LIMIT is supplied, a search returns at most 100 primary objects.
- id: max-page-size
  api: Adobe Workfront API (/attask/api)
  scope: per-query
  limit: 2000
  unit: primary objects
  description: $$LIMIT cannot exceed 2000. A larger value returns an IllegalArgumentException.
- id: max-objects-per-result
  api: Adobe Workfront API (/attask/api)
  scope: per-query
  limit: 50000
  unit: primary + secondary objects
  description: The combined count of primary objects and objects reached through expanded collections
    cannot exceed 50,000.
- id: max-fields-per-result
  api: Adobe Workfront API (/attask/api)
  scope: per-query
  limit: 1000000
  unit: fields
  description: When a result set is under 50,000 objects it may still include at most 1,000,000 fields.
- id: max-field-depth
  api: Adobe Workfront API (/attask/api)
  scope: per-query
  limit: 4
  unit: levels
  description: Field selection cannot traverse more than four levels from the queried object.
- id: max-batch-size
  api: Adobe Workfront API (/attask/api)
  scope: per-request
  limit: 100
  unit: objects
  description: Maximum batch create or update size.
- id: max-uri-length
  api: Adobe Workfront API (/attask/api)
  scope: per-request
  limit: 8892
  unit: bytes
  description: End-user requests to Production, Preview and Test Drive environments are routed
    through the Workfront CDN (Akamai) and are capped at an 8,892-byte URI. Applies only to URIs going
    through the CDN.
- id: concurrent-api-threads
  api: Adobe Workfront API (/attask/api)
  scope: per-tenant
  limit: null
  unit: concurrent threads
  description: 'Workfront states it "limits concurrent API threads" as a guardrail against abusive
    calls, and that the Sandbox environment applies the same limit so behaviour can be tested before
    release. The numeric limit is not published.'
- id: event-subscription-throughput
  api: Adobe Workfront Event Subscription API
  scope: per-user
  limit: null
  unit: events
  description: 'A user producing "too many events at a high rate within a short timeframe" may be
    sandboxed and see delivery delays. Threshold not published.'
response_headers:
  documented: []
  note: No X-RateLimit-*, RateLimit-* or Retry-After headers are documented on any Workfront API
    surface. This is the single largest agent-readiness gap in the Workfront runtime contract.
exhaustion:
  status_codes:
  - api: Workfront Planning API
    status: 429
    meaning: Rate limit exceeded
    source: openapi/workfront-planning-v2-openapi.json (documented in planning-api-basics status table)
  - api: Adobe Workfront API (/attask/api)
    status: null
    meaning: not documented; thread-limit rejection behaviour is unspecified
delivery_targets:
  event_subscriptions:
    typical_latency: under 1 second from the data change being logged
    stated_ceiling: generally under 5 seconds
    source: https://experienceleague.adobe.com/en/docs/workfront/using/adobe-workfront-api/event-subscriptions/event-subs-api