I can't open the Display Confirmation in Manage Production Operations app. Where can I find the necessary authorization?
You must add a business role(s) to your user.
You can check the authorizations required for the apps in the Fiori Apps Library (https://fioriappslibrary.hana.ondemand.com/sap/fix/externalViewer/) and search by the app.
In your scenario, searching by "Production Order Confirmation Object Page" app.
The required authorization for this app is:
So please add this authorization to your user.