According to the Microsoft Identity and Access Administrator (SC-300) Official Study Guide and the Microsoft Learn module “Manage Enterprise Applications in Azure AD” , when an organization requires that users request access before being allowed to use a corporate application, the correct configuration is to enable Self-service application access.

In Azure AD, the Self-service settings under an enterprise application allow administrators to specify whether users can request access to the app, who can approve those requests, and whether approvals are automatic or manual. This feature integrates directly with Azure AD Entitlement Management, enabling governance controls around who can request and access applications.

The documentation states:

“To allow users to request access to an enterprise application, you must enable self-service application access and configure the request and approval workflow.”

By contrast:

Provisioning (Option B) is used for automatic account lifecycle management within the app, not for user access requests.

Roles and administrators (Option C) deals with administrative delegation, not access requests.

Application Proxy (Option D) is for enabling secure remote access to on-premises apps, not access workflows.

Therefore, enabling and configuring the Self-service settings is the required step to meet the requirement that users must request access before using MyApp1 .