@LizaFrancis Afaik, there are no limits on the number of properties that you can create. I have seen a maximum of around 120 properties (mixed b/w both web and mobile) in Adobe Launch instance. There are partner sandboxes which are shared and those would have many properties I think (although I cannot see other launch properties, I can still see their Data Streams setup, which is definitely more than 200). There was no documentation that I came across to cross-validate this. So this is purely based on my experience.