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#ask-questions
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# ask-questions
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little-lighter-38371

01/23/2024, 9:58 AM
Hi everyone. I have question about running experiments with growthbook: how to create depend experiments? My case: • I have experiment X: 50% variation-1, 50% variation-2 • I want to create experiment Y with following constrains: “only for users in experiment-X variation-1” How to properly implement this scenario using growthbook?
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rhythmic-agent-34208

01/23/2024, 10:23 AM
Hi Bogdan, we don't currently have functionality for sub-experiments or dependent experiments. You could potentially use Namespaces to create overlap between experiments; otherwise, any dependencies would need to be written into the application code.
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little-lighter-38371

01/24/2024, 9:45 AM
Thank you August. Seems like namespaces isn’t suitable for my case. For example: if user-1 entered experiment-X variation-2 i want to add this user to experiment-Y to maximize speed of experiment (and time to market). ------- What i can do with namespaces: • create namespace namespace-1 • create experiment-X in namespace-1 (0 — 0.5) • create experiment-Y in namespace-1 (0.5 — 1) • got a results: users in experiment-X can’t get experiment-Y and I lose time & money
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rhythmic-agent-34208

01/25/2024, 5:21 PM
Hi again Bogdan, I think you're right that Namespaces won't work in this case. I was wrong about that. if you want to specifically include in Experiment B users who saw a certain variation in Experiment A, you would need to track which variation a user saw and then use that information as a targeting condition for the second experiment. This could involve: 1. Storing the variation assignment for the user when they are exposed to the first experiment. 2. Using this stored information to target the user for inclusion in the second experiment.
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