I'm trying to develop a payment app.
* I have created the shopify app
* I have added the "offsite payment provider" extension type to the app
* I have enabled the "development store preview" option in the app extension
* From the app page I have used the action "Test app on development store" to install it in a development store
* I can see the app installed in the development store's admin
...but I can't see it in as a payment option in the development store's checkout.
Am I missing any step? Where could I look to find any clue of what is wrong?
Solved! Go to the solution
Yes, I missed at least that. I can't use permissions stated there: write_payment_gateways or write_payment_sessions, but I found https://community.shopify.com/c/shopify-discussions/oauth-error-missing-shopify-permission-write-pay...
Thank you very much for your help!