Can't send invoice from the android app

I appreciate you bringing this to our attention, @anthonywx.

I'd like to step in and ensure that you can send an invoice within QuickBooks mobile app.

First, did you receive an error code when attempting to send an invoice?

I recommend clearing your QuickBooks Online (QBO) Mobile app's data. Cached data can cause difficulties while some tasks. You can accomplish this by following the steps highlighted below:

1. Go to the Menu ☰
2. Select Help & Feedback
3. Click Refresh Data
4. Then select Refresh.

Furthermore, we can uninstalling and reinstalling the app to ensure we are using the most recent version to avoid getting errors when sending invoices.

Here's how:

1. Tap and hold the app on your phone.
2. Drag the app to the Uninstall section.
3. Select Yes to confirm.

You can go to the following links to reinstall the QBO mobile app:

• Android app via Google Play.
• iPhone, iPad, and Apple Watch apps are via the iTunes App Store.
• Get the download link through SMS.

For your reference, check out this article for your guide:  How to download the QuickBooks Online mobile app.

In addition, feel free to watch this video tutorial to record an invoice using your QuickBooks mobile application.

Please let me know if you have further questions about QuickBooks' features and functions. I'm always willing to assist.