The verdict in three sentences
Without SSO, every business app multiplies passwords, reset tickets and orphaned accounts left active after an employee leaves. Integrating Single Sign-On (Azure AD/Entra ID, Google Workspace, SAML/OIDC) costs 5,000 to 18,000 EUR and 3 to 6 weeks, plus centralized role management and automatic provisioning (SCIM). The gain isn't just convenience: it's measurable security, with 30-40% fewer access tickets and instant offboarding.
Protocols and integration effort
The protocol drives the effort. OIDC is simplest on modern apps; SAML remains the enterprise standard; SCIM adds automatic account provisioning. 2026 ballpark for the European market.
| Protocol / function | Use case | Integration effort | Cost (EUR) |
|---|---|---|---|
| OIDC / OAuth 2.0 | Modern web app | Low | 5,000 - 8,000 |
| SAML 2.0 | Enterprise, Azure/Okta | Medium | 8,000 - 12,000 |
| SCIM (auto provisioning) | Account create/delete | Medium to high | +3,000 - 5,000 |
| Fine-grained roles (RBAC) | Multiple business profiles | High | +2,000 - 4,000 |
| MFA / conditional access | Sensitive data | Low (IdP side) | included with IdP |
Identity-provider licenses often already exist: Microsoft Entra ID is included in Microsoft 365, Google Workspace ships SSO natively. The cost is mostly the app-side integration.
What SSO changes day to day
Beyond the "Sign in with Microsoft" button, SSO recentralizes control. Before/after on the points that matter to an IT director.
| Point | Without SSO | With SSO + SCIM |
|---|---|---|
| Account creation | Manual per app | Automatic on hire |
| Employee departure | Forgotten accounts | Instant deactivation |
| Password tickets | 30 - 40% of support | Cut by 30 - 40% |
| Role enforcement | Per app, inconsistent | Centralized via groups |
| MFA | Optional, per app | Enforced by the IdP |
SCIM provisioning is the real value multiplier: without it, SSO handles authentication but not the account lifecycle.
Pitfalls to avoid
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Three common mistakes: forgetting a break-glass procedure if the IdP goes down, mis-mapping groups to application roles, and neglecting migration of existing accounts. Plan a cutover phase with dual authentication tolerated for a few weeks.
Mini case study
Sophie, IT director of a 180-person consulting firm in Paris, managed 6 business apps with separate passwords. Support handled ~140 access tickets/month at ~18 min each. The SAML + SCIM SSO integration on the critical app cost 13,500 EUR and 5 weeks. A 35% drop in tickets frees ~15 hours/month of support and removes orphaned-account risk; combined with instant offboarding, compliance improves: payback in about 10 months on support alone, before counting the risk avoided.
FAQ
SAML or OIDC? OIDC for modern web apps and recent projects, SAML when the ecosystem (Okta, ADFS, large enterprises) requires it. Many IdPs support both; the choice mainly depends on your app.
Does SSO really improve security? Yes: fewer reused passwords, MFA enforced at the IdP, and above all instant access revocation when an employee leaves. That's a direct reduction of attack surface.
Is SCIM mandatory? No, but without SCIM you still create and delete accounts by hand. SCIM automates the lifecycle and prevents orphaned accounts.
What if the IdP is unavailable? That's why a local break-glass account and a continuity plan matter. Major IdPs post above 99.9% availability, but the exception must be planned for.
How long to integrate? From 3 weeks for simple OIDC to 6 weeks with SAML, SCIM and fine-grained roles, testing included.
Let's scope your project. Specify your identity provider (Entra ID, Google, Okta), the target protocol and provisioning needs: we'll price the SSO integration, roles and cutover plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
