Most loyalty program activity is tied to customer accounts.
Only customers who have a customer account can:
Redeem their points for rewards
Access their VIP tier benefits
This means your customers must be able to sign in to their accounts to participate in your loyalty program.
Option 1: Enable Shopify’s default sign-in links
If sign-in links are disabled in your store, you’ll see a notification banner in the app.
To enable them:
Follow the link in the banner, or go to Settings → Customer accounts → Sign-in links in your Shopify admin.
Switch the toggle button on.
Note: Both types of customer accounts (the new and the legacy ones) are supported by the app.
Option 2: Use a custom sign-in system
If you already use a custom login setup, you can continue relying on it and simply ignore the notification message in the app.