Open source feature flagging and experimentation platform for stress free deployments, measured impact, and smarter decisions.

GrowthBook Users

if you already know the users that you want to expose, you can either directly assign them and fire a trackingCallback like event (bypassing the SDK), create a large saved group of the id's (not recommended if this is huge), or use remote evaluation.

We also find a lot of times folks want to do pre-assignment for not great reasons, and normal randomization is sufficient for their needs- but I don't know your use case