Single sign-on lets a person authenticate through a shared identity system and enter connected applications with fewer repeated sign-ins. A dependable rollout also defines which applications that person can use, what they can do inside each one, and how existing access ends.
For an application owner or small IT team, begin with one real workflow: a new employee joins, a role changes, or a contractor leaves. Map the applications, account records, and active sessions involved. This makes the scope more concrete than a successful login demonstration.
Separate the four responsibilities
Scroll the table horizontally on a small screen. Keyboard users can focus the table region and use the arrow keys.
| Responsibility | Question it answers | Evidence to collect |
|---|---|---|
| Authentication | Who signed in, and under which policy? | Identity-provider sign-in record and required authentication methods. |
| Provisioning | Does an account exist in the application? | Creation, update, and deactivation results. |
| Authorization | Which actions and records are permitted? | Role mapping and allowed/denied application tests. |
| Session management | How long does established access remain usable? | Session expiry, revocation behavior, and fresh-request tests. |
The identity provider authenticates the user. The connected application, sometimes called the relying party or service provider, validates the resulting identity information and establishes its own access context. Centralizing sign-in makes the identity provider an important dependency: protect its administration and plan for recovery and outages.
Identify the integration your application actually supports
Federated SSO commonly uses SAML or OpenID Connect. Password-based SSO instead stores and supplies an application’s credentials. Microsoft’s SSO overview distinguishes these methods; recording the method helps you understand what still needs application-specific password or account maintenance.
OpenID Connect adds an identity layer to OAuth 2.0. An ID token communicates authentication information to its intended client; access tokens serve the resource-access workflow. Use the provider’s supported integration and maintained libraries, and verify issuer, audience, signatures, redirect configuration, and the application’s session behavior.
Provisioning is another integration. The SCIM protocol defines operations for managing identity resources such as users and groups. A product’s “SSO supported” label alone leaves open whether it supports provisioning, which fields synchronize, and how quickly changes arrive. Record the specific capabilities included in your application plan.
Run a pilot with realistic identities
- Inventory the app. Record its owner, sign-in method, provisioning method, roles, service accounts, local-login routes, and emergency access procedure.
- Define the mapping. Choose a stable identifier and document how groups or attributes become application permissions. Handle duplicate accounts before enabling automatic creation.
- Use test identities. Include an ordinary user, a restricted user, an administrator, and an external collaborator if the app supports one.
- Test actual work. Open the app through its portal and direct URL. Check record-level access, exports, and administrative routes.
- Change and remove access. Move the test user between roles, deactivate the account, and try fresh requests from an already-open session.
- Record recovery. Verify the documented support route and an approved emergency-access procedure before making SSO mandatory.
Use a separate test application or a controlled pilot group where possible. Preserve a way to restore the prior configuration until the new path and recovery procedure have been verified.
Worked example: a contractor leaves
Microsoft explains that an application may issue and control its own session cookie; the identity provider cannot directly revoke every such application session. Read the access-revocation guidance alongside the application vendor’s documentation, and measure the behavior that matters to your team.
Finish the pilot with an owner, expected delay for each lifecycle change, monitoring for failed provisioning, and a response procedure. Revisit the integration when roles, domains, identity providers, certificates, or application plans change. For the resource-level checks behind the login, see web access management.
Continue exploring
Product documentation checked September 7, 2026. Recheck your installed version, account plan, and organization’s settings when following product-specific steps.