Issue symptoms
When I try to sign in to my Zendesk account, I see this error message: Error 400: admin_policy_enforced.
Resolution steps
The Error 400: admin_policy_enforced means that your organization doesn't allow Zendesk to access Google data.
If you received this error message, have an administrator of your Google Workspace account follow the instructions from this article from Google's help center: Control which third-party & internal apps access Google Workspace data.