How to fix script error 'Access is denied' while VPN auto-connects using Entra ID SSO

This article describes the script error ‘Access is denied’ while the VPN auto-connects using Entra ID SSO.

Scope

FortiSASE.

Solution

As shown in the below image. The Script error ‘Access is denied’ indicated that the custom redirect URL field is blank.

As shown in the below image. The Script error 'Access is denied' indicated that the custom redirect URL field is blank.

Solution:

Check and confirm: it is necessary to register the enterprise application in Azure to allow the FortiClient as a mobile/desktop application to query Microsoft Entra ID identity services.