In App Purchase Section is not visible under Features on App Store Connect

I have an app that is not submitted for review but I am unable to see the in-app purchase section for the same in Features. I have created an IAP product which is also lost after the Agreement/tax registration process. Please Help

Solution

You need to select...

Appstore from top
On left side at bottom There is a section of in-app purchase
Select Manage option from in-App purchase section to add in-app purchases.

Please refer to the following image so add in-app purchase for an app.