So I have unauthenticated_read_customers in both my app.toml file and showing up in my app in partners dashboard. But I’m still getting this error. I’ve also tried uninstalling and installing the app again.
Just a quick thought but have you tried clearing cookies?
I know for something recently related to permissions with a Shopify store I needed to clear cookies in order for the account to have the right access permissions. (Logging in/out did not do anything to help.)
I mean it may be a bit of a stretch but I would personally be happy to know that helped fix the issue if it does.
This isn’t a scope that’s accessible by calling the Storefront API from customer account UI extensions. These are the only scopes available to extensions for the Storefront API.