W-shaped attribution model
A position-based model that assigns 30% of revenue credit each to the first touch, lead-creation touch, and opportunity-creation touch, with the remaining 10% spread across all other interactions. Built for B2B teams running long, multi-stage pipelines.
What is the W-shaped attribution model?
The W-shaped attribution model is a position-based multi-touch model that tracks three explicit milestones in the B2B buying journey: the first touch (brand discovery), the lead-creation touch (identity conversion), and the opportunity-creation touch (pipeline entry). Each milestone receives 30% of the total revenue credit. The remaining 10% is distributed equally among all other touchpoints in the journey.
The model's name derives from the shape of its credit distribution curve: three peaks at the three milestones, with valleys in between where middle-touch interactions receive lower but nonzero credit. This structure directly mirrors how B2B revenue teams typically define pipeline progression: a lead becomes an MQL, an MQL becomes an SQL, and an SQL becomes an opportunity.
W-shaped is the standard upgrade from U-shaped attribution for companies that have instrumented the opportunity-creation stage. It provides a more complete picture of how marketing contributes to the full pipeline, not just the top of it.
How credit is distributed: the 30/30/30/10 split
The W-shaped model distributes credit across four zones:
- 30First touch: the channel or content that introduced the account to your brand for the first time.
- 10Middle touches (pre-lead): interactions between first touch and lead creation, split equally.
- 30Lead-creation touch: the interaction associated with the prospect becoming an identified lead in the CRM.
- 10Middle touches (pre-opportunity): interactions between lead creation and opportunity creation, split equally.
- 30Opportunity-creation touch: the interaction associated with the account entering the formal sales pipeline as an opportunity.
Note: "10% spread across other interactions" means the two middle zones together share 10%, not 10% each. The total always sums to 100%.
| Touchpoint | Zone | Credit weight |
|---|---|---|
| Organic search visit | First touch | 30% |
| LinkedIn ad | Middle (pre-lead) | 5% |
| Form fill (lead created) | Lead creation | 30% |
| Nurture email click | Middle (pre-opp) | 5% |
| Demo request (opp created) | Opportunity creation | 30% |
Compare with linear attribution (20% to each touch in this example) and first-touch (100% to organic search). W-shaped is the only model here that distributes meaningful credit to all three milestones simultaneously.
When to use W-shaped attribution
W-shaped attribution is the right primary model when:
- Your sales cycle is three months or longer and marketing touches span the full journey from awareness to pipeline
- You have reliable CRM events for lead creation and opportunity creation, and those events are consistently logged for all deals
- Marketing and sales share revenue targets and need a model that credits contributions at every stage of the funnel, not just the top or bottom
- You want to evaluate which channels accelerate deal progression, not just which channels generate first contact
If your pipeline tracking does not yet include a clean opportunity-creation event, start with U-shaped attribution and migrate to W-shaped once the data quality is in place. In AttriByte, both models run simultaneously so you can monitor how the W-shaped numbers diverge from U-shaped as your CRM data matures.
Pros and cons
Pros
- Captures three critical B2B pipeline milestones: acquisition, lead creation, opportunity creation
- Reduces over-reliance on either top- or bottom-of-funnel channels in budget decisions
- Scales well to long, complex sales cycles with multiple stakeholders
- Directly aligns with CRM pipeline stages, making it easy to tie attribution to revenue ops
Cons
- ✕Requires clean tracking of three distinct milestone events in the CRM or warehouse
- ✕More complex to explain to stakeholders unfamiliar with multi-touch attribution
- ✕The 30/30/30/10 split is a starting convention; it may need calibration for your pipeline
- ✕Still misses post-opportunity touchpoints like proposals, legal reviews, and champion calls
How AttriByte handles W-shaped attribution
AttriByte maps the three W-shaped milestones directly from your CRM records in the warehouse. Lead-creation and opportunity-creation events are identified by field values or stage transitions you configure during onboarding. All touchpoints are then classified into the correct zone, and the 30/30/30/10 weights are applied automatically.
Because cookieless identity stitching connects all marketing touches to the correct account journey, W-shaped in AttriByte includes web sessions, email interactions, ad clicks, form fills, CRM activities, and any other event in your warehouse. There is no need to manually join marketing data to CRM data: AttriByte's bring-your-own warehouse architecture means all the data is already in one place.
W-shaped runs alongside all five other models simultaneously. Atlas AI can immediately highlight where channels behave differently under W-shaped versus linear, which typically points to the channels most responsible for accelerating deals through pipeline stages rather than simply generating volume. Explore the full platform on the product page.
Explore other models
Run W-shaped alongside five other attribution models
AttriByte maps your CRM milestones to the 30/30/30/10 split and calculates it in parallel with first-touch, last-touch, linear, time-decay, and U-shaped.