To remove the "This application was created by a Google Apps Script user" banner from your web app, you generally need to change how the script is hosted or verified, as it is a built-in security feature for unverified scripts. Primary Solutions
Turn your Apps Script code into an by using the doPost(e) or doGet(e) functions to return clean JSON data instead of HTML. Build a clean frontend using HTML/JavaScript or React. To remove the "This application was created by
Add the your script uses (e.g., https://googleapis.com ). Phase 3: Verification (The Critical Step) Add the your script uses (e
Ensure you are using the /exec URL and not the /dev URL, as the development mode always shows debugging headers. To remove the message cheaply, where possible
If you use restricted scopes, be prepared to pay for a third-party security assessment (costing thousands of dollars). To remove the message cheaply, where possible.