Based on my knowledge cutoff of 2021, SAP Build has been sunsetted and replaced by SAP Fiori. However, assuming that extensions for SAP Build Work Zone, advanced edition are still available, the three scenarios that could be implemented with these extensions are:

A. Ensure single-sign-on experience for all users

B. Show a list of flights or hotels booked by the user in the corporate travel system

E. Show a list of incidents reported by a user from an on-premise or cloud system

POST /Users: Create a user profile (C)

PATCH /Users/{id}: Update specific fields of a user profile (B)

GET /Users: Return a list of user profiles (D)

PUT /Users/{id}: Update the entire user profile (A)

Content Federation is a term used to describe the process of integrating and sharing content across multiple systems, applications, or platforms. The content is typically exposed at the user level, which means that it can be accessed by individual users or groups of users who have been granted appropriate permissions.

Therefore, the answer to the question is D. User Group, as the exposed content is integrated and shared at the level of a group of users who have been identified and authorized to access the content.

B. They can call multiple backend systems.

D. Destinations must be maintained at the SAP BTP subaccount level.

UI integration cards can call multiple backend systems, which makes them versatile in integrating various types of data sources into the UI. Additionally, destinations must be maintained at the SAP BTP subaccount level, which ensures that the necessary connectivity is established between the UI integration card and the backend systems.

There could be several reasons why a user is unable to login to SAP Build Work Zone, but based on the options provided, the most likely reason is A. SAP BTP subaccount viewer role collection is missing.

SAP Build Work Zone is a service provided by SAP Business Technology Platform (BTP), and in order to access it, users need the appropriate roles and permissions. The SAP BTP subaccount viewer role collection is necessary for accessing SAP Build Work Zone. If this role collection is missing, the user will not be able to login.

Option B, SAP BTP global account viewer role collection, is not directly related to accessing SAP Build Work Zone and is unlikely to be the reason for login issues.

Option C, active default identity provider on SAP BTP subaccount level, may cause issues with login if it is not configured properly, but it is not directly related to missing role collections.

Option D, a shadow user not existing on SAP BTP subaccount level, is not likely to be the reason for login issues since shadow users are typically used for testing and development purposes and are not necessary for regular user access.

Based on my knowledge cutoff of September 2021, SAP Build Work Zone, advanced edition does not have a dedicated mobile app available on app stores. However, users can access SAP Build Work Zone, advanced edition through a mobile web browser app. Therefore, the correct answer is A.

There is no mention of the SAP Mobile Start app or SAP SuccessFactors app being able to access SAP Build Work Zone, advanced edition. Therefore, options B and D are not correct.