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Linear attribution

Linear attribution is a measurement model that assigns equal credit for conversions across each marketing channel or touchpoint along a customer’s journey.

What is linear attribution?

What is linear attribution?

Linear attribution is a multi-touch attribution model that measures how different touchpoints influence a customer’s journey before they complete a desired action. Unlike other models that give more weight to the first or last interaction, linear attribution assigns equal credit to every touchpoint.

Today’s multi-channel marketing world has customers interacting with brands across various platforms and touchpoints. Linear attribution tracks the entire user journey, ensuring that every marketing effort is recognized. This balanced method helps you make informed decisions and optimize your strategies effectively.

Key characteristics

  • Multi-touch approach: Linear attribution acknowledges every point of interaction a customer has with your brand. This gives you a full picture of how different marketing channels work together to drive conversions.
  • Equal credit for each touchpoint: Each interaction in the customer’s journey is given equal weight. This balanced view helps you see the true value of every marketing effort.

How does linear attribution work?

Linear attribution maps out all the touchpoints a customer interacts with before converting and gives equal credit to each. 

Let’s say you’re running a campaign to promote your app. If a user first sees your ad on Instagram, then visits your landing page from a Google search, reads a blog post, and finally downloads your app after clicking a remarketing ad, each of these interactions gets 25% of the credit for the conversion.

By valuing each interaction equally, you can see the full impact of your marketing ecosystem. If data shows that email campaigns and remarketing ads play significant roles in conversions, you can allocate more resources to these channels for better results.

Benefits and limitations of linear attribution

Like other marketing attribution methods, linear attribution has its pros and cons. While it can help you understand your customer journey, improve user experience, and allocate resource across channels, the insights it provides may lack nuance.  

Benefits

  • Provides comprehensive multi-channel insights: You get a complete picture of your customer journey across all channels. By giving equal credit to each touchpoint, you can see how your entire marketing ecosystem works together. This helps you understand how different channels support each other and improve the overall customer experience.
  • Facilitates omnichannel strategies: Linear attribution values every interaction, pushing you to create omnichannel strategies. This means your marketing efforts become more cohesive and integrated, ensuring a consistent customer experience whether through social media, email, content marketing, or paid ads.
Linear attribution - facilitates omnichannel strategy
  • Supports data-driven decisions: With linear attribution, you can take a data-driven approach to your marketing. By analyzing the contribution of each touchpoint, you can make informed decisions on resource allocation and campaign optimization. This leads to better ROI and more effective marketing strategies.
  • Takes every touchpoint into account: Equal credit distribution means no single touchpoint is overvalued. This is especially useful in complex customer journeys with multiple interactions influencing decisions. Instead of overemphasizing the first or last touchpoint, you can appreciate the full spectrum of your marketing efforts.
  • Maintains consistent engagement: Knowing all touchpoints are valued equally motivates your marketing team to maintain consistent engagement across all channels. This consistency enhances brand awareness and reinforces your messaging, crucial for building trust and loyalty among customers.

Limitations 

  • Oversimplifies the customer journey: Linear attribution oversimplifies how customers interact with your brand. Not all touchpoints are created equal; some influence conversions more than others. You might miss the real stars in your marketing lineup by giving equal credit to each touchpoint.
  • Ignores touchpoint quality: Linear attribution doesn’t differentiate between the quality and impact of different touchpoints. For example, a high-quality blog post that deeply engages a customer may receive the same credit as a brief, low-impact social media interaction. This lack of differentiation can lead to suboptimal marketing strategies.
  • Misleads credit for high-frequency channels: Marketing channels with high-frequency, low-impact interactions (such as social media) can receive too much credit under a linear attribution model. This skews the perceived effectiveness of these channels, potentially leading you to overinvest in them.
Linear attribution - misleading credit for high frequency channels
  • Doesn’t factor in touchpoint timing: When interactions happen matters. Early touchpoints might build awareness, while later ones could close the deal. But linear attribution doesn’t consider the sequence or timing, making it harder to understand what truly drives conversions.
  • Doesn’t fit different customer segments: Different customer segments may respond differently to various touchpoints. Linear attribution’s uniform approach doesn’t account for these variations, leaving you with generalized insights that don’t reflect the diverse behaviors and preferences of different customer groups.
  • Inaccurate ROI measurement: By spreading credit evenly, linear attribution can distort the actual return on investment of specific channels. This can result in poor budget decisions and make it difficult to optimize marketing spend.

Is linear attribution the right model for you?

Linear attribution is a valuable attribution measurement tool when you want to grasp the combined impact of multiple touchpoints. It’s especially handy for multi-channel campaigns and early-stage marketing, where every interaction counts.

On the other hand, it’s tricky to appropriately weigh touchpoints. Does a user spending five minutes exploring your app have the same importance as following you on social media? And why, or why not? This remains a constant challenge. For instance, one user clicking on a push notification might have more influence on their decision to purchase than another user who also clicked.

For deeper insights into specific touchpoints or complex sales cycles, other attribution models may offer more precise and actionable data. But if you’re looking for a straightforward model that accounts for all relevant touchpoints, linear attribution is a solid starting point.

Let’s take a closer look into when using linear attribution makes sense and when it doesn’t.

When to use linear attribution

Multi-channel campaigns

Suppose your marketing strategy involves various channels like social media, email marketing, influencer partnerships, and paid ads. In this case, linear attribution helps you see how these channels collectively help you achieve your marketing goals.

Imagine a user who first sees an Instagram ad, then reads a blog review, and finally clicks on a remarketing ad to download your app. Under the linear model, each interaction gets equal credit, giving you a balanced view of your app marketing efforts.

Early-stage marketing

In the early stages of marketing your product, when you’re still figuring out what works, linear attribution offers a broad understanding of how different touchpoints contribute to user acquisition. This helps you fine-tune your strategy without prematurely prioritizing one channel over another.

Consistent engagement

If your business relies on maintaining consistent engagement across various touchpoints, linear attribution highlights the importance of each interaction.

For example, a fitness app might engage users through blog posts, social media updates, email newsletters, and in-app notifications. Linear attribution ensures every engagement point is recognized, encouraging sustained efforts across all channels.

When NOT to use linear attribution

Unequal touchpoint impacts

If certain touchpoints have a significantly higher impact on conversions, linear attribution might not be ideal.

For example, if data shows a demo video on your app’s landing page is the primary driver of downloads, giving it the same credit as a less impactful touchpoint, like a single social media post, won’t accurately reflect its importance. In such cases, models like time decay or position-based attribution, which give more weight to key interactions, might be better.

Complex sales cycles

For apps with complex sales cycles, where the user journey involves multiple stages of engagement and decision-making, linear attribution may oversimplify the process. An enterprise app that requires demos, consultations, and multiple follow-ups before a download is completed would benefit more from a custom attribution model that reflects the true journey.

Linear attribution - complicated sales cycle

Resource optimization

If your goal is to optimize resources by investing more in high-impact channels, linear attribution might not provide the granular insights you need. For example, if you need to decide whether to invest more in Facebook ads or influencer partnerships for your gaming app, an attribution model that differentiates the impact of these channels, such as data-driven attribution, can offer better guidance.

Multi-touch alternatives to linear attribution

Choosing the right attribution model depends on your marketing goals and customer journey. While linear attribution offers an equitable view, models like first touch, last touch, time decay, U-shaped, and W-shaped provide nuanced insights for optimizing different aspects of your marketing strategy.

Read on for a brief introduction to each of these models. 

First-touch attribution

Linear attribution vs First touch attribution

First-touch attribution gives all the credit for a conversion to the first interaction a user has with your brand. This model is great for understanding which marketing channels create initial awareness.

Last-touch attribution

Linear attribution vs. Last-touch attribution

Last-touch attribution credits the very last interaction before conversion. This model helps you see which touchpoints are best at closing the deal.

Time decay attribution

Linear attribution vs. Time decay attribution

Time decay attribution assigns more credit to touchpoints closer to the conversion. You can use this model when timing significantly impacts your decisions.

U-shaped attribution

Linear attribution vs. U shaped attribution

U-shaped attribution, or position-based attribution, gives most credit to the first and last interactions, with the remaining credit distributed among the middle touchpoints. It’s up to you to determine the percentage of credit assigned to each. This model highlights the importance of both initial engagement and conversion interactions.

W-shaped attribution

Linear attribution vs. W shaped attribution

W-shaped attribution extends the U-shaped model by giving significant credit to three key touchpoints: the first interaction, a critical mid-funnel interaction, and the last interaction. This model shows the impact of pivotal touchpoints throughout the customer journey.

Comparing the models: A practical example

Let’s suppose you’ve launched a marketing campaign for your gaming app. The user sees an Instagram ad, reads a blog post, gets an email, and finally clicks on a remarketing ad to download the app.

Here’s how different attribution models would handle this:

  • First-touch attribution gives all the credit to the Instagram ad, where the user first discovered your app. This helps you see which channels are best at creating initial awareness.
  • Last-touch attribution gives all the credit to the remarketing ad, the final interaction before the user downloaded the app. This model highlights the importance of the last touchpoint that led to the conversion.
  • Time decay attribution assigns more credit to touchpoints that occurred closer to the conversion. So, the remarketing ad and email newsletter get more credit, while the Instagram ad and blog post get less. This model emphasizes the growing influence of interactions as the user moves closer to downloading the app.
  • U-shaped attribution splits, let’s say, 40% of the credit between the Instagram ad (first touch) and the remarketing ad (last touch). The remaining 20% is divided between the blog post and the email newsletter. This model highlights the importance of the first and last touchpoints, while still acknowledging the impact of middle interactions.
  • W-shaped attribution gives significant credit to the Instagram ad (first touch), the blog post (key mid-funnel touchpoint), and the remarketing ad (last touch). The remaining credit is distributed among other touchpoints, like the email newsletter. This model underscores the importance of critical interactions throughout the user journey.

Key takeaways

  • Linear attribution assigns equal credit to every touchpoint in a customer’s journey, recognizing all marketing efforts. This approach provides a comprehensive view of how various marketing channels work together, helping you better understand the overall customer journey.
  • Linear attribution promotes consistent engagement across all channels. Because no single touchpoint gets overvalued, it’s particularly helpful in complex customer journeys, as well as early-stage marketing and multi-channel campaigns.
  • However, linear attribution can oversimplify the customer journey. It doesn’t account for the quality and timing of touchpoints, offering generalized insights that might not fit all customer segments.
  • Linear attribution helps you get a broad understanding of how different touchpoints contribute to conversions. But it’s less effective when touchpoints have unequal impacts or in complex sales cycles where the sequence and quality of interactions are crucial.
  • Other multi-touch attribution models, such as time decay, U-shaped, and W-shaped, can offer more precise marketing measurement insights. By weighting interactions based on their actual influence, these models help you optimize resource allocation and improve marketing effectiveness.

FAQ’s

How does linear attribution work?

Linear attribution assigns equal credit to every touchpoint a customer interacts with before completing a desired action, providing a balanced view of your marketing efforts. For example, if you see an Instagram ad, read a blog post, get an email, and finally click on a remarketing ad to download an app, each touchpoint would receive 25% of the credit for the conversion.

What are the benefits of using linear attribution?

Linear attribution offers a comprehensive look at the customer journey, encourages consistent engagement across all touchpoints, and helps in making data-driven decisions. It supports omnichannel strategies and ensures fair credit distribution, avoiding overemphasis on any single touchpoint.

How do I know if linear attribution is the right model for me?

To decide if linear attribution suits your needs, consider your marketing strategy’s complexity and goals. Linear gives equal credit to each touchpoint in a customer’s journey, making it perfect for multi-channel campaigns or long sales cycles where each interaction has equal influence. However, if some interactions are more influential, consider a more advanced model.

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