Can anyone please help, I’m using the mobile app on IOS and the make a copy function does not work anymore

Welcome to the Community space, Gert. I'm here to help you resolve the issue you're facing with your invoices.

To isolate the problem, let's perform some basic mobile troubleshooting steps. We can start by refreshing the application, like clearing the cache from your web browser. Please ensure you have a stable internet connection and that your app is updated.

For iOS devices:

1. Go to your phone's settings.
2. Select General, then choose iPhone Storage.
3. Tap QuickBooks Online from the application list.
4. Select Offload App to free up the storage without deleting the documents and data for the app.

For Android devices:

1. Go to your phone's settings,
2. Choose Apps (varies by device).
3. Select QuickBooks Online from the application list.
4. Go to the Storage section, then tap Clear Data.

After performing these steps, power cycle your device. If the problem persists, uninstall and reinstall the app.

As a workaround, you can access your QuickBooks using your mobile browser to manage your invoices.

Additionally, here's an article on personalizing your sales forms: Customise invoices, quotes, and sales receipts in QuickBooks Online.

Please let me know if you have any additional questions about your invoices. I'm here to assist you. Happy holidays!