The One Flag Feature Launch Playbook
Rollout, A/B test, and personalize your product’s features without touching your codebase again.
Why you must read this eBook
35 Checks. Five phases.
- Pre-Launch: Define the flag and rollout strategy
- Engineering: Instrument once. Never again.
- Rollout: Release without fear
- Experiment: Graduate to A/B testing
- Personalize: Optimize for each audience segment
One Flag. Rollout, experiment, personalize
Most feature flag tools treat rollout, A/B testing, and personalization as three separate systems. That means three sets of instrumentation. Three places where something can fall out of sync. Three code changes every time your strategy evolves.
VWO Feature Experimentation was built around a different idea: the flag is the truth.
You define it once. Your developers instrument it once. And from that moment, everything that follows…gradually releasing to 5% of users, splitting traffic into a controlled experiment, routing enterprise customers to a different experience from free users, happens directly from the VWO dashboard. Your codebase doesn’t know the difference because it doesn’t need to.
This checklist is the step-by-step proof of that idea in practice.
Your team’s pre-launch ritual
The checklist in the playbook is designed to become the thing that goes into every feature launch ticket, every sprint kickoff, every release planning doc, automatically. Each phase is short enough to scan in two minutes and specific enough that nothing slips through. It works the same way for a junior PM on their first launch as it does for a staff engineer who’s shipped hundreds of features.
We chose VWO as a long-term strategic engine to help us democratize experimentation across the organization. It acts as a meeting point for all Growth profiles, balancing statistical robustness with operational agility. This allows us to scale a true data-driven culture where even failures become valuable business learnings.Jorge Arboleya PérezCRO & SEO Team Lead, Meliá Hotels International
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Christoffer Kjellberg CRO Manager
VWO has been so helpful in our optimization efforts. Testing opportunities are endless and it has allowed us to easily identify, set up, and run multiple tests at a time.
Elizabeth Levitan Digital Optimization Specialist
As the project manager for our experimentation process, I love how the functionality of VWO allows us to get up and going quickly but also gives us the flexibility to be more complex with our testing.
Tara Rowe Marketing Technology Manager
You don't need a website development background to make VWO work for you. The VWO support team is amazing
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