Error duplicating app Error: 1003

[micheal]

I’ll attach some previous community posts related to your query - you might find your solution

Problem Duplicating App

Try the following steps. It might work. Duplicate your Google Spreadsheet first. Open your app, go to settings, go to data sources, and replace your current spreadsheet with newly duplicated spreadsheet. Once the spreadsheet has been changed, try duplicating the app again. This works for me most of the times.

If it doesn’t work - experts will be here soon