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1. it can be anything. We default to integers if you use the feature flags to start the experiment, but it doesn’t matter. 2. Yes, you can- as long as the experiment id doesn’t change, users will get bucketed in to the same variation. Therefore, you can use multiple assignment calls and it will always get the same, and you can include multiple features.

@fresh-football-47124 Thank you! bows And how can we get the Variation ID string value via SDK? We try this and get 0 or 1 in return