Margin Integrity

Stop below-margin orders at checkout.

CartMoat enforces contribution-margin floors across discounts, shipping, and payment methods — with evidence for every decision.

  • Stop negative-margin checkouts.
  • Keep shoppers moving with clear paths to compliance.
  • Leave an audit trail Finance can defend.
See how it works Review audit model

Coverage across checkout paths

One policy, enforced across the paths that change margin.

Discounts Stacking and promos
Shipping Delivery choices
Payments Method fees

Where margin quietly breaks

Patterns that surface in incident reviews.

  • Discount stacking + free shipping: orders go negative after checkout.
  • Express delivery without cost awareness: speed erodes contribution margin.
  • High-fee payment methods: thin carts absorb fees without guardrails.

CartMoat intervenes at checkout to stop these losses — or records exactly why an order passed, with the policy version attached.

The incident that keeps repeating

A customer stacks two codes and selects express shipping — during a promo window.

Checkout accepts it.

You find out after the fact, when contribution margin is negative.

Decision evidence, not guesswork

Every enforcement action is logged with policy version, contribution margin, and the exact reason it fired. No silent blocks. No missing context.

Track: blocked carts, adjusted carts, and estimated margin delta - assumptions disclosed.

Review audit model
Decision record (example)
Outcome Blocked
Reason CM.FLOOR.VIOLATION
Policy promo_floor_v12 (sha256: 9a31...)
CM -2.4%
Fired at 2026-01-14T13:52:11Z
Shopper message Choose standard shipping or remove code WINTER20

No mystery. No debates. Just a decision you can point to.

Policy-first enforcement

01

Define once

Margin floors, exclusions, and adjustments live in one policy.

02

Enforce at checkout

Discounts, shipping, and payments are evaluated together.

03

Explain and record

Every decision is stored with reason codes and evidence.

Shopper clarity by design

CartMoat tries to keep the order.

It guides the shopper into a compliant option (shipping, payment, discount).

Only when no compliant path exists does it block - with a clear reason.

Language, tone, and thresholds are merchant-controlled.

Defensible audit trail
  • Decision records with timestamps and reasons.
  • Policy version tags and historical snapshots where enabled.
  • Structured for finance and compliance review.

Built for grown-ups

We prefer honest absence over deceptive presence. CartMoat enforces only what can be proven and audited.

Built for operators who prefer proof over persuasion.