THE CHALLENGE: $0 marketing budget, so we turned the product into a growth engine. Our “Verify Projects” feature used auto-imported callsheet data to trigger seamless invites through a clever “Unverified Project” prompt.
Company:
Wercflow
My Role:
Head of Product
Year:
2023
Techstack
Zapier | Postgres | Sendgrid | Python | AWS
The Solution — Product-Led Viral Loop:
We turned a basic need—project verification—into a seamless growth engine. When users saw an Unverified Project badge, clicking “Verify” sent an automated email to their teammates, framed as a simple verification request. But behind the scenes, it acted as a smooth platform invite. Once their teammate logged in, both users’ projects were verified—creating a natural, self-reinforcing loop that drove continuous user growth.
STEP 1 - Auto-Import and Trigger Design
Wercflow auto-imported callsheet data when users uploaded a project. This created Unverified Project entries with teammates who had not yet joined. The verification badge appeared naturally in the dashboard without any explicit referral prompt.
STEP 2 - The Verification to Invite Mechanic
Clicking Verify sent an automated email to each unclaimed teammate, framed as a professional verification request, not a referral. The email explained that their project was unverified and asked them to confirm their role. Once they clicked and signed up, both accounts were verified and linked. The invite was invisible because it was the verification.
STEP 3 - A/B Testing and Compounding Growth
Ran A/B tests on email copy, badge placement, and timing. Verification framing achieved 3x higher click-through than direct referral copy because it was framed as mutually beneficial. Every new project created became a new trigger. The loop compounded with the platform.
📊 The Impact — Growth Engine by Design
By embedding growth directly into the user workflow, the “Verify Project” feature transformed a simple action into a seamless viral loop—without feeling like a referral gimmick.
RESULTS
0 to 20,000+ users with zero marketing spend
Viral coefficient above 1.0 for verified projects
Verified users showed 2x higher 90-day retention vs unverified
Loop compounded: each new user triggered more verification invites
