For Merchants

Prevent

Post-purchase, pre-fulfillment fraud prevention - every order gets a risk score and a recommended action (approve, verify, or cancel) before you ship.

You want risky orders stopped before they ship - the only stage where stopping a dispute costs nothing. Prevent is Chargeflow's pre-fulfillment product: after checkout, every order is scored for dispute risk and given a clear recommendation - approve, verify, or cancel - so the orders most likely to become chargebacks never leave the warehouse.

When to use Prevent

  • You want to stop friendly fraud - "item not received" or "not as described" abuse from real buyers - before fulfillment, not fight it after.
  • You want true fraud (stolen cards, false identities) and refund/return abuse flagged on the same signal.
  • You want to challenge suspicious buyers without cancelling their orders outright, so legitimate customers are not turned away.
  • You want fraud screening that never touches checkout - legitimate customers are never blocked at payment.

How it works

Prevent acts after payment and before fulfillment. The customer completes checkout normally; during the fulfillment window, Prevent scores the order using identity intelligence across device, IP, email, and payment behavior, backed by machine-learning models trained on the Chargeflow Network. Each order receives a risk score (300-850) and one of three recommendations:

  • Approve - low risk; fulfill with confidence.
  • Verify - elevated risk; the buyer is challenged through a verification flow (a "yellow card") that confirms the order and the identity behind it. The challenge itself acts as a deterrent to abusive buyers, while legitimate buyers complete it and proceed.
  • Cancel - high risk; hold or cancel the order before it ships.

Recommendations can be applied automatically against your rules, or reviewed manually in the Chargeflow dashboard.

Set it up

Prevent runs today through the Chargeflow app for Shopify - a one-click install that screens every order regardless of which PSP processes the payment. Enable Prevent from the Chargeflow dashboard; no code is required.

Prevent API - coming soon

A public Prevent API (order scores, recommendations, and webhook events) is not yet available - nothing on this page is callable via the API today. When it ships, its reference and integration guides will live here.

Where Prevent fits

Prevent acts at stage 2 of the transaction lifecycle - the earliest, cheapest point to stop a dispute. Complaints that arise after fulfillment are deflected in the pre-chargeback window by Alerts; chargebacks that are filed anyway are fought by dispute automation.

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