On this page, you will find more information about the most common causes and most relevant solutions for the Google Classroom error 'Can’t invite users from this domain'. Do you need help straight away? Visit our support page.
The Google documentation indicates that error code 'Can’t invite users from this domain' is caused by the following problem: "You’re trying to invite a user from a domain that's not permitted by your administrator.".
Do you think there is another cause for this error? Let others know in the comments.
Contact your administrator to update your domain's class membership settings.
Do you still have problems with this error? Try one of the quick fixes below or leave a comment.