What is Microsoft Entra ID?
The identity layer behind many work sign-ins.
Signed in is only the first check.
Identity / a successful sign-in does not grant every permission.
Follow the idea
- Authentication verifies evidence for this account’s identity.
- Authorization allows this account to read Documents.
- A different permission decision denies access to Payroll.
Keep the limit visible
Conceptual distinction, not a literal Entra processing order. Actual access can also depend on application policy, device and context.
Can the signed-in user open Payroll?
No, not under this illustrative policy. A valid sign-in is compatible with a denied request.
“Once someone signs in, they should be able to open everything.”
A sign-in and permission to perform a particular action answer different questions.Source for this graphic: learn.microsoft.com ↗ · Checked November 7, 2026 · Illustrative example.
Start with identity
Microsoft Entra ID is a cloud identity and access service. It helps organizations manage identities and access to applications and resources.
One useful distinction
Illustrative example: an employee signs in to a work application. Identity checks and access policy help determine whether the request should proceed. The application may still make its own permission decisions.
Keep the system boundary
An identity provider does not replace every application role, data permission or lifecycle process. A clear design follows the identity from creation through changes and eventual removal.
The next smart question
Which access decisions happen in the identity service, and which remain inside the application?
Independent explanation. No sponsorship or endorsement implied. Product features and policies can change; check the exact product and configuration.
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