Why last-click is not enough
Most buyers see ads, search results, emails, sales conversations, and branded visits before they convert. Last-click attribution assigns the entire outcome to the final interaction, so assist channels look wasted and closing campaigns look like the whole story. Multi-touch attribution reconstructs the path and distributes credit so budget decisions can include both demand creation and demand capture.
Common multi-touch models
No model is perfect. The useful move is to compare a few models against the same first-party journey so you can see how assumptions change channel credit.
- First-touch: 100% to the first known interaction—best for measuring awareness, blind to what closed the deal.
- Last-touch: 100% to the final interaction—simple, common in ad platforms, systematically undervalues assists.
- Linear: equal credit across every touchpoint—balanced, but can over-credit low-intent noise.
- U-shaped (position-based): heavier weight on first and last, remainder in the middle—useful when discovery and close both matter.
- Time-decay: more credit to recent touches—fits shorter cycles; can under-credit early research on long B2B deals.
- Data-driven: algorithmic weights from conversion patterns—powerful at volume, still depends on clean identity and outcomes.
What has to be true for MTA to work
A model cannot fix missing sessions, conflicting conversion definitions, or revenue that never leaves the CRM. Multi-touch attribution needs first-party collection, identity that stitches anonymous and known visits, and a shared definition of pipeline versus closed revenue.
- Capture source, campaign, and content on owned properties—not only ad-platform pixels.
- Resolve the same person or account across sessions, forms, calls, and CRM records.
- Credit the business outcome you actually manage: qualified pipeline, purchases, or collected revenue.
How to use MTA in budget decisions
Treat attribution as a decision framework, not a courtroom verdict. Compare models, check the journeys behind a spike, and validate with sales or finance before shifting spend. Convertmax’s attribution product applies these models on first-party journeys so teams can see assists, not only last-click winners.