For the last 2 days a lot of my invoices won’t send. It says they’ve been sent when I do it, but then I go back and it says ‘not sent’?

Welcome to the Community, linda-leach.
 

I'm here to make sure your invoices will be sent successfully. 

The behavior that you're experiencing can be caused by a browser hang-up. Let's do some troubleshooting steps to rule this out. Open an incognito or private browser. This mode doesn't save your browsing history, cookies, site data, or information entered in forms.

Here are the keyboard shortcuts:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P

Then, sign in to your QuickBooks Online account and try to send the invoices. If it's successful, go back to your regular browser and clear its cache. Restart your browser afterward. Alternatively, try using a different supported browser.

You'll want to run the Invoice List report to review all the invoices made in your account. From there you can click each of the invoices and manually edit them one at a time.

Here's how:

1. Go to Reports.
2. Enter the Invoice List in the search field.
   
3. Customize the filter if necessary.
4. Click Run report.
   

Also, I have articles here about managing reports in QuickBooks Online (QBO) for your reference:

• Customise and modify columns on reports
• Run reports in QuickBooks Online

If there's anything else that I can help you with, please let me know in the comment section down below. Have a nice day.

You might also want to visit our QuickBooks Online learning guides for tutorials and webinars about the product.

Drop me a reply if you have other questions managing invoices. I'm always happy to assist you further. Have a great day ahead.