This message was deleted.

Those attributes have to be stored on your end - by default, GrowthBook stores no state

So how it will maintain stickyness. for same Id?

well, you can use an ID that is already sticky, like one that your event tracker already has - or you can make your own id and store it in a cookie yourself

Can i get control over stickyness, like TTL for stickiness?

Sure, you can use any attribute you like for the assignment, even an ID you make yourself - and then you can control the stickyness