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Inngest · Concept

Concurrency key

Inngest concurrency limits how many function steps execute at once. Use a key for a separate limit per tenant or another value, and use a scope to share a limit across functions.

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Syntax

inngest.createFunction({ id, concurrency: { limit, key? }, triggers }, handler)

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  • Concurrency keys (Multi-tenant concurrency)
  • Sharing limits across functions (scope)
  • Combining multiple concurrency limits
  • Throttling

Source: Concurrency management. Checked 2026-11-03.