: If you're using the HTML Service to create a UI, ensure your HTML templates or the script that's generating the UI doesn't include the notice.
Google will email you with questions or approval. Once approved, your OAuth consent screen will show a checkmark (“Verified”). Your users will then see a clean permission dialog without the “created by a Google Apps Script user” warning.
Configure app manifest and project properties : If you're using the HTML Service to
If you are just prototyping, ignore the message. But before you launch a tool for real users, invest the time to remove that warning. Your users will thank you.
If you have ever built a custom Google Workspace add-on, a simple automation script, or a web app using Google Apps Script, you have likely encountered the infamous grey warning banner that reads: Your users will then see a clean permission
Here’s a full guide you can use to remove the message “This application was created by a Google Apps Script user” from a Google Apps Script web app.
The banner acts as a safety warning for unverified developers. To lift it, you must identify your "app." Your users will thank you
: Google provides extensive documentation on Google Apps Script and Google Workspace app development. There might be specific guidance on customizing or removing such notices.
Not everyone can remove this warning. Your ability depends on the type of Google account you are using.
: Malicious actors trying to mimic Google login screens [2].
If you want absolute control over the user interface with zero Google branding, you should stop using Apps Script to serve the visual frontend. Instead, use Apps Script strictly as a backend API.