Completion rates aren't always enough to prove the true impact your in-product experiences are having. That's why we've added control (a.k.a holdback) experimentation. 🎉
Now, you can show a flow to a subset of your audience, hold back a controlled portion of the group (say 20%), and see the level of conversion between the two groups to identify the level of uplift the flow is having.
And the best part is that it's really easy to get a control experiment setup; take a tour to get started or learn more in our support doc.
Control experiments are available to run on web and mobile flows for customers on Essentials, Growth, and Enterprise plans.
And if you want to run an A/B test (measure performance between version A and B)–you can already do that with Flow Variation Testing.