I like to know how I can prevent the same person to log in to my app with 2 different emails. So can I get a unique device number to tell me that there have been logget in from this phone before? Can I set a stored variable that dont delete if I delete the app and install it again???

How to get a unique device nummer

jared January 11, 2020, 5:01pm 2

I would use the push notification component to get a user id. i think this is device specific.

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How to prevent 2 people from using the same login

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