Thank you for the clarification. Given your scenario, you do not need to go to the AppManager settings and provide certificates there. You only need to set them up in the BS projects, in the Apple Developer Console and in the apps themselves. You need to register for push notifications from the apps.
Telerik AppManager is an app distribution and management solution. It is a private app store that can serve as an alternative to the Google Play, Apple App Store and the Windows Store. AppManager lets you distribute apps privately and securely outside of the public app stores. You can use it to distribute apps to co-workers or remote beta testers for example. You can read more about Telerik AppManager in the Telerik AppManager Introduction
article. I think AppManager is not vital for your scenario, but you can still use it if you need to distribute your apps outside the app stores.
Regarding the AppManager certificates - the service also provides an AppManager mobile app that serves as a distribution hub for app distribution. The store members can install this app and have access to all apps that are distributed to them. They can install, review and rate apps from it much like in the public app stores. To enable the AppManager mobile app for iOS, you need to provide an iOS certificate and provisioning profile in the AppManager Settings page. This hub app can also receive push notifications to inform store members that they have a new app available or that an app update is ready to be installed. To enable these notifications, you need to add the corresponding iOS push notifications certificate on the AppManager Settings page. Without it, the members can still use the app, but will not receive push notifications. You can read more about the AppManager mobile app here
I hope the information is clear and helpful. Let me know if you have any more questions regarding AppManager or the Telerik Platform as a whole.
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