Hi, if I my user is going to pay for a digital service that will not be used in the app can I add a weblink to payment provider instead of using IAP? Even though its not a physical product.
if I my user is going to pay for a digital service that will not be used in the app
If not to be used in the app, why would there be anything about it in the app ?
That would at least raise questions during review. You should follow the advices of the guidelines:
Include detailed explanations of non-obvious features and in-app purchases in the App Review notes, including supporting documentation where appropriate
And 3.1.1. seems to forbid what you want to do:
3.1.1 In-App Purchase:If you want to unlock features or functionality within your app, (by way of example: subscriptions, in-game currencies, game levels, access to premium content, or unlocking a full version), you must use in-app purchase. Apps may not use their own mechanisms to unlock content or functionality, such as license keys, augmented reality markers, QR codes, etc. Apps and their metadata may not include buttons, external links, or other calls to action that direct customers to purchasing mechanisms other than in-app purchase.
