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Library · Chargebacks · How to run this

Forter block-stack CB bleed is not false-positive cost

How to run thisChargebacks3 steps
CalculatorForter false-positive CB rate · Calculator lives in the articleOpen

Divide FP chargebacks by blocked orders on one Forter block cut. That ratio is FP-CB %.

Pair: False-positive CB rate on Chargebacks. Dollar twin: false-positive cost. FN twin: false-negative CB rate.

What you type

False-positive chargebacks — Chargebacks on Forter-blocked seats that stamped as false positives in the cut.

Blocked orders — Orders Forter blocked in that same block cut.

FP-CB % = false-positive chargebacks ÷ blocked orders × 100. Fat FP-CB % usually means over-tight block rules bleeding good demand into disputes — chase that path; never invent an FP-CB chip.

What not to do

Skip inventing FP-CB %. Skip dumping a false-positive-cost AOV export into FP-CB fields. Skip folding missed-fraud FN CBs into the FP numerator. Skip blending MIDs when one block rule owns the bleed.

Related: Chargebacks, false-positive cost, false-negative CB rate, velocity-block share.

Procedure

  1. Type false-positive chargebacks and blocked orders.
  2. Read FP-CB %.
  3. Chase allow/block rules when FP-CB % is material.

Failure modes

  • Inventing FP-CB %.
  • Dumping a false-positive-cost AOV export into FP-CB fields.
  • Folding missed-fraud FN CBs into the FP-CB numerator.

Worked example

None on this page yet. When one lands it will be a real case: what broke, the number, and what changed. Not a composite.

Glossary

FP-CB %
False-positive chargebacks ÷ Blocked orders × 100.

Work with us — We run this job on your accounts. Services

FAQ

Is this Forter false-positive cost?
Sibling Forter door on dollars, not rates. [False-positive cost](/manuals/forter-false-positive-cost) prices blocked good orders × AOV. This page is FP chargebacks ÷ blocked orders.
Is this Forter false-negative CB rate?
Sibling error on allowed orders. [False-negative CB rate](/manuals/forter-false-negative-cb-rate) is missed-fraud CBs ÷ reviewed. This page is FP chargebacks on the blocked set.
What FP-CB % should I invent?
None. Pull false-positive chargebacks and blocked orders from the same Forter block cut.