Firepush does not support importing a subscriber list directly. Here is how subscribers and customers are added to your account.
Push subscribers
Push subscribers can only be collected through the Firepush opt-in on your store. There is no way to import a list of push subscribers, because push subscriptions are browser-specific and tied to the Firepush embed script.
If you are switching from another push notification app, see our switching provider guide for how to rebuild your subscriber list.
SMS customers
SMS customers are synced from Shopify — not imported manually. Use the Import customers from Shopify button in Subscribers > SMS customers to pull in all customers with SMS marketing consent. See our SMS customer import guide for details.
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