Getting Add App error in review for a unlisted app

[kj-entvin]

Hi I submitted an app for review on shopify and it got rejected because of below reason - 

Your app does not request installation on the shop immediately after clicking "add app". Apps must ask a shop for access when being installed on a shop for the first time, as well as when they are being reinstalled after having been removed. During install or reinstall we expected OAuth to be initiated at https://cambridgetestshop.myshopify.com/admin/oauth/request_grant but was redirected to {my domain}.

I don't understand why add app is being tested for an app that is in unlisted category

[JayAdra]

Hi Kj,

Even if your app is unlisted, if you're submitting it at all, it needs to go through the OAuth process, and that needs to be the first thing it does.

Redirecting the merchant anywhere else will cause this check to fail. Once they have finished OAuth, you can redirect them elsewhere.