[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"glossary-idempotency-key::en":3,"gloss-cluster-idempotency-key::en":26,"gloss-next-idempotency-key::en":9},{"slug":4,"category":5,"name":6,"definition":7,"meta_desc":8,"faq":9,"schema_markup":9,"related":10},"idempotency-key","no-code","Idempotency Key","An idempotency key is a unique identifier you attach to a request so that running it twice has the same effect as running it once. In automation, the same trigger often fires more than once — a webhook is redelivered, a scenario is replayed after an error, a polling step re-reads a row before your status update saved. Without protection, each retry creates a duplicate: two charges, two Slack messages, two rows. Why it matters: reliable automations must assume every step can run again, and the cheapest defense is a key derived from the event itself (an order ID, a message ID) that the downstream system uses to recognize and ignore repeats. Practical note: many payment and messaging APIs accept an idempotency key header directly; when a tool doesn't, store processed keys in a data store and add a filter that drops any event whose key you've already seen before doing the real work.","An idempotency key makes running the same request twice equivalent to running it once — essential in automation, where webhooks get redelivered and runs replayed.",null,[11,14,17,20,23],{"slug":12,"name":13},"custom-api-call","Custom API Call (HTTP Request Module)",{"slug":15,"name":16},"error-handler","Error Handler",{"slug":18,"name":19},"exponential-backoff","API Rate Limiting Strategy (Backoff)",{"slug":21,"name":22},"run-history","Run History",{"slug":24,"name":25},"webhook","Webhook",[27,31,35,38,41,44,47,50,53,56,59,62],{"slug":28,"category":5,"name":29,"updated_at":30},"action","Action","2026-08-24T02:46:36+00:00",{"slug":32,"category":5,"name":33,"updated_at":34},"aggregator","Aggregator","2026-08-24T02:46:37+00:00",{"slug":36,"category":5,"name":37,"updated_at":30},"airtable","Airtable",{"slug":39,"category":5,"name":40,"updated_at":30},"api","API",{"slug":42,"category":5,"name":43,"updated_at":30},"api-key","API Key",{"slug":45,"category":5,"name":46,"updated_at":34},"approval-workflow","Approval Workflow",{"slug":48,"category":5,"name":49,"updated_at":30},"automation-platform","Automation Platform",{"slug":51,"category":5,"name":52,"updated_at":30},"automation-recipe","Automation Recipe",{"slug":54,"category":5,"name":55,"updated_at":30},"backend-as-a-service","Backend-as-a-Service (BaaS)",{"slug":57,"category":5,"name":58,"updated_at":34},"backfill","Backfill",{"slug":60,"category":5,"name":61,"updated_at":30},"bubble","Bubble",{"slug":63,"category":5,"name":64,"updated_at":30},"business-logic","Business Logic"]