All Google Forms will now have granular controls over who can respond

Last year, we announced that form creators can upgrade their existing forms to have granular controls over who can respond to those forms via sharing settings.  Specifically, form creators can limit response access to specific users, groups, or target audiences, similar to how file owners can restrict the sharing of Google Docs, Sheets, Slides or Sites files in Drive. 

We’re excited to announce that we will now automatically upgrade all existing forms to have granular controls over who can respond. When forms are upgraded, all users who could previously respond to the form will continue to be able to respond. Once the upgrade is complete, form creators can make changes to who can respond using the new granular controls, if desired. The form will remain available to receive new responses while  it is being upgraded.