MarginMine

We findvariances.

MarginMine reconstructs operating costs from invoices, contracts and real events. The result is a clear view of what does not match, and the evidence behind it.

  • Duplicate billing
  • Wrong weight band
  • Incorrect zone
  • Unexplained surcharge
Carrier invoiceBilling period · April 2026
ShipmentFindingBilled
MM-84391Weight band€14.80
MM-84417Duplicate billing€18.20
MM-84502Fuel surcharge€12.64
MM-84689Zone mismatch€22.10
MM-84724Return mismatch€17.90
Reading invoice linesIllustrative data
Contract ruleDUP-02

Repeated line against the same shipment reference.

Evidence
Billed
—
Expected
—
Refundable0,00
MM-84417 · Duplicate billing · Billed €18.20 · Expected €9.10 · Refundable +€9.10

Every line gets a calculation path.

Parcel Audit links each invoice line to the shipment event and the rate rule that applied. It then recalculates the expected charge and stores the comparison as evidence.

Reconstructed calculation path

Three sources meet in one calculation.

Invoice, operational event and agreement are tied to the same shipment key.

Invoice lines

SRC-01

Operational events

SRC-02

Contract rules

SRC-03

Reconstruction logic

RULESET / VERSIONED

Reviewable evidence

READY

Three fixed principles.

01
Source-linkedEvery finding points back to the record it came from.
02
DeterministicThe same inputs produce the same expected charge.
03
Evidence-readyEvery finding is handed over with its rule and recalculation.

Illustrative data

A variance earns attention only when its cause is visible.

MM-84417

Duplicate line

+€9.10

MM-84391

Weight band

+€4.40

MM-84689

Zone mismatch

+€5.40

Evidence chain

Every finding carries its own audit trail.

The output is a linked file of invoice line, shipment record and rate rule.

Invoice line

MM-84417 / VERIFIED

Shipment record

MM-84417 / VERIFIED

Rate rule

MM-84417 / VERIFIED

Parcel costs, reconstructed line by line.

Parcel Audit compares carrier invoices with shipment records and contracted rates. It isolates potential billing variances and prepares the supporting evidence for review.

Open the productAvailable for selected pilots

Parcel Audit

Parcel variance report

Run MM-0426
Audited shipments
12,482
Potential variances
327
Recovery opportunity
€4,812.70
Evidence-ready items
91%
Shipment IDFindingBilledExpectedVariance
MM-84391Weight band€14.80€10.40···Ready
MM-84417Duplicate billing€18.20€9.10···Ready
MM-84502Fuel surcharge€12.64€11.38···Ready
MM-84689Zone mismatch€22.10€16.70···Review
MM-84724Return mismatch€17.90€8.95···Ready
Reading invoice
Lines auditedIllustrative data

Audit knowledge for the decisions behind the dashboard.

All resources
Reconciliation

From audit finding to realized carrier credit

A defensible status path for review, submission, carrier response and issued credit, without presenting theoretical potential as outcome.

27 July 2026
Data protection

What a parcel audit does not need to know

A field-level guide to data minimization: information needed for rate checks and information that should be excluded.

27 July 2026
Rate engineering

Version carrier rates so historical charges remain auditable

How to preserve effective periods, sources, exceptions and rounding logic so historical costs remain reproducible.

27 July 2026

One product. One cost type. Audited to the source.

MarginMine is run from Hannover by Elias Aral. Parcel Audit is the product it operates today: carrier invoices compared line by line with shipment records and the rate version that applied on the service date.

01Evidence before assertionEvery finding carries the invoice line, shipment record, contract rule and recalculation it was built from.
02No fee on theoretical potentialA success fee applies only to credits the carrier actually issued.
03Data minimisation before transferScope, transfer method and deletion date are agreed before the first file is sent.

A first scan shows which lines do not match the contract.

Scope, success definition and fee basis are agreed in writing before every pilot. A success fee applies only to carrier credits that were actually issued.

See the commercial model

What travels with every finding

  • Invoice line01
  • Shipment record02
  • Contract rule03
  • Recalculation04

Illustrative data

marginmine