Google Drive sharing
Additional information and troubleshooting
"You are not authorised" error.
If you encounter an error when attempting to add, edit, or upload a file to the Google Drive shared with you, and your organisation also uses Google Workspace or Google for Education, your organisation may have limited sharing with external domains.
More information on addressing this, and adding the secureschools.com domain to your Allowlist, can be found here on the Google Workspace Admin Help site:
Allow external sharing with only trusted domains
If the steps here aren't resolving the issue, please reach out to our support team or your Customer Success Manager.