You can resolve the 400 Admin Policy Enforced error by following these steps:
Log into admin.google.com with your GSuite account.
Navigate to Security → Access and Data Controls → API Controls → Manage Third-Party App Access.
In the Accessed Apps list, find Secureframe.
Hover over Secureframe and click Change access on the far right.
On the following page, click the Next button.
You will see the type access that has been granted to Secureframe (Trusted, Limited, or Blocked) along with explanations of each.
Note: If Secureframe is not listed in Accessed Apps, please follow the below instructions to add:
Navigate to Security → Access and Data Controls → API Controls → App Access Control
Under the Add app dropdown, select OAuth App Name Or Client ID
Search for Secureframe > Click Select
Please reach out to Customer Support at [email protected] if the error persists after following these steps.