New in-app purchase is developer action needed

Hi, I'm trying to submit a new version of my app to app review and it got rejected. I had a look at the rejection and it says that I need to submit my IAP with my app binary. The only problem is... I have no idea how to do that.

My IAP is currently stuck on 'Developer Action Needed' and the button to submit for review is greyed out and disabled so I can't click it.

I tried to follow this guide; https://help.apple.com/app-store-connect/#/dev1986a0e5c and I don't even have the IAP section underneath the builds to attach an IAP in the first place.

I've looked at these questions for support and none of them provide any indication as to why my app was rejected and seemingly I can't submit a new IAP:

Can someone help me with at all, please?

Hello! Sorry to hear you are experiencing issues with App Store Connect. Please file a ticket via https://feedbackassistant.apple.com/ , remember to include Apple IDs of the app and IAPs, some screenshots and probably a screen video. And post FB# ticket number here. Thank you!

I've added a report through Feedback Assistant. The reference number is FB11878226.

New in-app purchase is developer action needed
 
 
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