- When a universal IAM/MFA platform is required across hundreds of SaaS apps, endpoints, and non-Fortinet VPNs; in such cases, consider Okta, Microsoft Entra ID, Ping, or Duo.
- When there is no tolerance for administrative lockout risk: if break-glass procedures and recovery processes are not established, tying MFA to critical firewall/admin accounts introduces operational risk.
- When frequent hardware refreshes or FortiGate/FortiAuthenticator replacements occur and license portability is required: FortiToken Mobile licensing constraints introduced on August 4, 2025 may affect operational flexibility.
- When user adoption constraints prevent adding another authenticator app (e.g., environments already standardized on Duo or Microsoft Authenticator).
- When consistently reliable push on iOS in complex scenarios is a strict requirement: community reports indicate some iOS/push edge cases; pilot testing is advised.