Frequently Asked Questions

A curated summary of the top questions asked on our Slack community, often relating to implementation, functionality, and building better products generally.
Statsig FAQs
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GENERAL

How can I assign new users to one group while keeping existing users in another in Statsig?

Date of slack thread: 6/17/24

Anonymous: Hi support team, For decision-making purposes, I have 2 groups (group A and group B) that pass target gate. I want to assign new users to target group A, but I want the existing users who are already assigned to target group B to continue receiving the group B experience. How can I achieve this? Thank you!

Tore (Statsig): There isnt a way to do this - we only track groups for comparisons in test results, we do not have the programmatic set of people in a given group at runtime in order to do this type of filtering. Are you trying to do this on the client or the server side? On the client side, we might have a solution that would work for you moving forward that relies on local storage. On the server side, the storage is up to you; (if you did have a creation date property or similar that you were tracking, you might be able to use manual stratified sampling + an experiment to do this, but it’s a bit more involved).

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Why the best build with us

OpenAI OpenAI
Brex Brex
Notion Notion
SoundCloud SoundCloud
Ancestry Ancestry
At OpenAI, we want to iterate as fast as possible. Statsig enables us to grow, scale, and learn efficiently. Integrating experimentation with product analytics and feature flagging has been crucial for quickly understanding and addressing our users' top priorities.
OpenAI
Dave Cummings
Engineering Manager, ChatGPT
Brex's mission is to help businesses move fast. Statsig is now helping our engineers move fast. It has been a game changer to automate the manual lift typical to running experiments and has helped product teams ship the right features to their users quickly.
Brex
Karandeep Anand
President
At Notion, we're continuously learning what our users value and want every team to run experiments to learn more. It’s also critical to maintain speed as a habit. Statsig's experimentation platform enables both this speed and learning for us.
Notion
Mengying Li
Data Science Manager
We evaluated Optimizely, LaunchDarkly, Split, and Eppo, but ultimately selected Statsig due to its comprehensive end-to-end integration. We wanted a complete solution rather than a partial one, including everything from the stats engine to data ingestion.
SoundCloud
Don Browning
SVP, Data & Platform Engineering
We only had so many analysts. Statsig provided the necessary tools to remove the bottleneck. I know that we are able to impact our key business metrics in a positive way with Statsig. We are definitely heading in the right direction with Statsig.
Ancestry
Partha Sarathi
Director of Engineering
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