Overview

A Position Based Attribution Model credits both the first and last touchpoints in the buyer's journey with the most influence, gently acknowledging the intermediate touchpoints.

What is Position based Attribution model?

The Position-Based Attribution Model, also called the U-Shaped Model, attempts to balance the acknowledgment for customer conversion between the first interaction (awareness stage), the last interaction (decision stage), and the middle interactions (consideration stage). The model argues that the introduction and conclusion of a marketing effort are the most impactful. Thus, it attributes more credit, 40% each, to the first and last interactions. The remaining 20% is evenly distributed among any middle, or intervening, touchpoints.

Formula

There isn’t an exact formula for the Position Based Attribution Model as the distribution of credit is typically 40-20-40, meaning 40% of the credit goes to both the first and last customer interaction points and 20% is equally divided among the rest of the interaction points.

Example

Consider a customer journey where a customer discovered your product via Facebook ad (first interaction), read a blog post about it (middle interaction), clicked on an email link (middle interaction) and finally made a purchase through Google Ads (last interaction). In this scenario, the Facebook Ad and Google Ad would get 40% of the credit each while the blog post and the email link would share the remaining 20%.

Why is Position based Attribution model important?

This model finds a sweet spot between valuing each point of contact and placing a heavier emphasis on the crucial touchpoints. By attribiting significant value to the first and last touchpoints, it gives a more holistic view of what motivates the customer to make a purchase. It helps brands steer their marketing strategy by identifying which channels drive awareness and ultimately lead to conversions.

Which factors impact Position based Attribution model?

The Position-Based Attribution Model, while balanced, does have its flaws. Improving it involves understanding your customer journey better. Through proper data analysis and constantly revisiting your attribution model, the weights assigned to different points can be adjusted for a more accurate representation.

How can Position based Attribution model be improved?

Multiple factors can impact the effectiveness of the Position-Based Attribution Model. These include the length of the sales cycle, variety of marketing channels used, the product or service being sold, and even the frequency of customer interactions with these channels.

What is Position based Attribution model’s relationship with other metrics?

There’s an important correlation with other ecommerce metrics like Conversion Rates, Customer Acquisition Cost (CAC), or Lifetime Value (LTV). Through a well-implemented Position-Based Attribution Model, businesses can gain insights to optimize their marketing budget allocation, reduce CAC, and improve LTV by focusing on the right customer touchpoints.

Free essential resources for success

  • Build-vs.-Buy-MMM_-Weighing-both-sides-of-the-scale

    Build vs. Buy MMM: Weighing both sides of the scale

    Learn how to assess your organization’s capabilities, data readiness, and long-term goals before choosing the right MMM approach.

  • Measure Drives Growth 1 - Lifesight

    Measure What Drives Growth

    A practical guide for marketing agencies to eliminate overlapping platform data, restore client trust, and accurately measure incremental business growth.

  • The Measurement Program outer cover

    The Measurement Program

    Build a marketing measurement program with the structure, governance, and accountability needed to drive confident decisions.

Discover more from Lifesight

  • MMM vs attribution

    Published on: June 25, 2026

    MMM vs. Attribution: The 2026 Decision Checklist

    When platform ROAS stops matching real revenue, it’s time to rethink attribution and use MMM to uncover what truly drives incremental growth.

  • Aligned Measurement Framework

    Published on: June 24, 2026

    The Next Challenge in Measurement Isn’t Better Models. It’s Better Standards.

    Shared standards can turn fragmented measurement into confident decision-making across the marketing ecosystem.

  • Why MTA Is Broken – And Why Unified Measurement Is the Only Way Forward

    Published on: June 15, 2026

    Why MTA Is Broken – And Why Unified Measurement Is the Only Way Forward

    MTA can show what happened before a conversion, but not what actually caused it. Learn why modern marketers are moving toward causal measurement, incrementality, and unified measurement.