Skip to main content
Karn ConsultingKarn Consulting
Growth Systems

Attribution System Build

Production attribution stack with last-touch, MMM-lite, and incrementality views - engineered, not powerpointed.

From$7,500 fixed
ContactScope
Attribution System Build
5–6 weeks
Build duration
$7,500 fixed
Starts at
MTA + MMM-lite
Models included
All majors
Channels ingested
60 days
Post-launch support
Ideal for

When this is the right call.

  • $5M+ ad-spend brands where spreadsheet attribution has hit its ceiling.
  • Performance agencies needing white-label warehouse-grade attribution for client books.
  • Series A+ B2B SaaS blending first-touch, multi-touch, and self-attribution survey data.
  • Teams with a data engineer (or willingness to retain one) post-handover.
Not a fit

When you're better off elsewhere.

  • Brands wanting a pre-packaged dashboard product - buy Triple Whale or Northbeam instead.
  • Companies under $1M/yr ad spend - incremental insight doesn't justify warehouse build.
  • Teams without engineering bandwidth to own the system after the 60-day support window.
How it works

A working system in weeks - not a slide deck in months.

  1. 01

    Audit · Week 1

    Source-of-truth mapping, channel taxonomy, success metric definitions.

  2. 02

    Build · Weeks 2–4

    BigQuery schema, dbt models, ingestion pipelines, dashboard layer.

  3. 03

    Validate · Week 5

    Reconcile against platform numbers, MMM model fit, dashboard QA.

  4. 04

    Train · Week 6

    Workshops, documentation, runbook handover.

Scope included

Every line. On the box.

Productised means published. No hidden scope, no surprise invoices, no scope creep dressed as a change order.

  • BigQuery dataset architecture
  • dbt models for events + orders + ad spend
  • Ingestion: Meta, Google, LinkedIn, TikTok, Klaviyo, Shopify
  • Last-touch + first-touch + linear + position-based
  • MMM-lite (regression-based) for spend optimisation
  • Incrementality test framework
  • Looker Studio dashboard (or Looker / Metabase)
  • Daily refresh + monitoring
  • Self-serve channel filters
  • Documentation + SQL examples
  • Stakeholder training (3 hours)
  • 60-day post-launch support
Pricing

Three tiers. Transparent.

Starter
$7,500 fixed

Ideal: Foundational attribution stack

  • Last-touch + GA4
  • 3 channels
  • 1 dashboard
  • Documentation
SLA
5-week build · 60-day post-launch support
Talk about Starter
GrowthMost popular
$15,000 fixed

Ideal: Most $5M+ ad-spend brands

  • MTA + BQ + Looker
  • All channels
  • Incrementality framework
  • Training
SLA
6-week build · 60-day post-launch support
Talk about Growth
Scale
Custom

Ideal: Multi-brand groups, mature data orgs

  • MMM + incrementality + LTV
  • Multi-brand
  • Custom integrations
  • Quarterly optimisation
SLA
Custom SLA · ongoing model maintenance
Talk about Scale
Tech we deploy
BigQueryLookerGA4MetaGoogle AdsLinkedInTikTok
Client
"We finally trust our ROAS numbers. The MMM-lite layer told us we'd been over-investing in last-touch Google by 28%. [PLACEHOLDER]"
ST
Sienna Tan
VP Analytics, BloomBox Group (multi-brand D2C)
FAQ

Common questions.

Related services

Often paired with this.

Related case studies

Receipts.

Ready to talk?

Ready to scope Attribution System Build?

Book a 20-minute call. Bring one bottleneck. We'll diagnose live. Starts at $7,500 fixed.

Send a brief instead