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I'm switching from Java to Flutter. My actual Java app has about 100 subscribed users and I can't keep their subscription in Flutter using the official in_app_purchase plugin because it doesn't support the verification.

I'm looking for a solution so I found RevenueCat. It seems the most preferred choice but I don't have the app_user_id required for the data migration. The same happens with Adapty.

Does someone did it before?

Giovanni
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  • do you have any sort of login in your app? you could derive an identifier from your login system and set that as app_user_id. It should be a non predictable identifier that identifies a user uniquely. Take a look at this https://docs.revenuecat.com/docs/user-ids#tips-for-setting-app-user-ids – Cesar Apr 29 '22 at 20:40
  • With 100 subscribers, a client-side migration should be pretty painless and doesn't require an app user ID: https://docs.revenuecat.com/docs/migrating-existing-subscriptions#client-side-migration – enc_life Apr 29 '22 at 22:25
  • Thanks, but I would like to make the subscription device-based instead of account-based. Otherwise everyone could share the account login and I will lost subs... – Giovanni Apr 30 '22 at 07:35

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