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GlossaryConceptUpdated May 2026

Idempotency

noun · also: retry, action, webhook

What is idempotency?

Idempotency means running the same operation multiple times has the same effect as running it once — critical for safe retries.

Definition

Full definition of idempotency

In automation platforms, idempotency matters because workflows retry. If your 'create HubSpot contact' action retries after a network glitch, you don't want two contacts. Idempotent actions use a deterministic key (e.g., the trigger's event ID) so the second call detects the first and is a no-op. Tiny Command's actions are idempotent by default where the destination API supports it.

In practice

Idempotency examples

Idempotent action
HubSpot → Create or Update Contact. Re-running with the same email produces one contact, not two.
Used by

Apps that exemplify idempotency

See idempotency in action across real integrations.

FAQ

Common questions about idempotency

What if an action isn't idempotent?
Tiny Command's run log shows you when an action was retried; you can add a Lookup node to dedupe manually.