Stop duplicate webhook events from running your automation twice

Checks every incoming webhook event against a short memory so retries never trigger a payment, email, or record twice.

How the work actually flows

It branches. Exactly one path is taken.

Pattern: Exclusive Choice (4)

flowchart TD trig>"webhook event arrives"]:::trig s0["receive webhook event"]:::task s1[("check event key in memory")]:::store trig --> s0 s0 --> s1 gx{"× is event a duplicate"}:::gate s1 --> gx p00["stop before action"]:::task gx -->|"duplicate detected"| p00 p10["record event key"]:::task gx -->|"new event"| p10 p11["run original action"]:::task p10 --> p11 p00 --> out p11 --> out out[/"duplicate events blocked automatically"/]:::out pay{{"prevents double charges or emails"}}:::pay out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itA stepA record or sheetOne path onlyResultPayoff
Build size
Standard

A mid-size build with several tools working together.

Business functions
API & Webhook Integration
Connects
AARI

The problem it solves

When a payment provider or app retries a webhook that timed out, your system can end up charging a customer twice, sending a duplicate confirmation email, or creating the same record more than once. You have no easy way to tell a genuine repeat event from a retry.

Who it fits

Businesses whose systems process webhooks that trigger payments, emails, or database updates.

How it works

  1. An incoming webhook event arrives
  2. The system checks whether it has already seen that event's unique key recently
  3. If it's a repeat within the last day, it stops the process before anything happens twice
  4. If it's new, the event is recorded and the real action, like a payment or email, proceeds as normal
What you get

Duplicate charges that never happen

Every webhook event gets checked against recent history before it runs, so retries never trigger the same payment or email twice.

What you get

A guarantee that repeated webhook deliveries never cause a duplicate payment, email, or database entry.

What you need

An AARI API key.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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