Troubleshoot domain errors

This article is for G Suite Administrators. Teachers go here.

Errors might occur in Classroom when users—students or teachers—are on different domains.

Error messages

Error message Error occurs when What to do
1 user was not invited. You cannot invite students outside your domain to classes. A teacher can't invite students in an untrusted domain to join a class. Check your Classroom and Drive settings. See Whitelist a domain.
Oops! That code is for a class outside your domain. Please make sure you entered the correct code. A student in an untrusted domain can’t use a code to join a class in the school domain. Check your Classroom and Drive settings. See Whitelist a domain.
This file (These files) cannot be shared with the class due to a problem with your domain settings. Please contact your domain admin. A teacher or student in an untrusted domain can’t post to the class stream. Check your Drive settings. See Whitelist a domain.
This file (These files) cannot be turned in due to a problem with your domain settings. Please contact your domain admin. A student in an untrusted domain can’t turn in files for an assignment. Check your Drive settings. See Whitelist a domain.
This file (These files) cannot be unsubmitted due to a problem with your domain settings. Please contact your domain admin. A student in an untrusted domain can't unsubmit previously submitted files for an assignment. Check your Drive settings. See Whitelist a domain.
This submission (These submissions) cannot be returned due to a problem with your domain settings. Please contact your domain admin. A teacher can't return files to a student in an untrusted domain. Check your Drive settings. See Whitelist a domain.
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