Using App to Amend an Invoice the section on invoice to amend (Your Order Number) isnt there, i have to drive back to base and use the laptop, why is it missing?

I'll help you fix this, @chris c1.

Loading issues and unresponsive interfaces are commonly caused by a corrupted cache in the system. To rule this out, you can try clearing the accumulated app data. Feel free to follow the steps I've listed below.

For Android devices:

1. Head 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.

For iOS devices:

1. From your phone's settings, tap Settings.
2. Choose General, then select iPhone Storage.
3. Select QuickBooks Online from the application list.
4. To free up the storage without deleting the documents and data for the app, select Offload App.

Once done, try editing your invoices again. If the error still persists, you may need to uninstall and then reinstall the application.

Alternatively, you can log in to your QBO company using a web browser. Then, edit your sales transactions from there to further isolate the issue.

I also encourage reading this article to learn how to personalize the invoices that you send to your customers: Customize sales forms.

Let me know if you have any other questions or concerns by dropping a comment below. Stay safe and have a great rest of the day.