Microsoft Entra ID vs Scalekit IdP-Initiated SSO: Side-by-Side Comparison (2026)

Microsoft Entra ID

Enterprise and mid-market teams already committed to Microsoft 365 should choose Microsoft Entra ID because it eliminates the identity tax of managing a separate platform, with conditional access policies that actually enforce what your Microsoft-native apps require. NIST CSF 2.0 coverage on PR.AA (Identity Management, Authentication, and Access Control) is solid, and the integration with Security Copilot means threat investigation workflows stay within your existing Microsoft ecosystem rather than forcing context-switching. Skip this if you need deep API governance or fine-grained entitlements for non-Microsoft SaaS applications; Entra ID treats those as secondary use cases, and you'll end up stitching in third-party tools anyway.

Scalekit IdP-Initiated SSO

Mid-market and enterprise teams managing multiple identity providers without a unified user directory will move fastest with Scalekit IdP-Initiated SSO, since it converts IdP-initiated requests to SP-initiated flows automatically and requires zero user migration. The JWT-signed SAML assertions and webhook support for custom workflows address the PR.AA and PR.DS functions that most SSO deployments leave half-built. Skip this if your organization has already standardized on a single IdP or needs deep directory synchronization; Scalekit solves the conversion problem, not the identity source problem.