Hello, NealRM.
Clearing the cache or using another browser is usually the first step in resolving cache-related issues. Since the troubleshooting steps didn't work, you'll want to contact our support at this point.
I'll guide on how to reach out to them:
- Open QB Assistant by clicking the Help menu.
- Select Talk to a human.
- When asked, enter something like "Send and New button isn't working."
- Proceed with I still need a human.
- Click the Get help from a human link.
- Select Get a call back or Start a message.
For the old Help menu interface, follow this article for the steps: QuickBooks Online Support.
Our agents will take a look a the system and check what's preventing the Send and new button from functioning. Though, I'd like to do it here. However, I'm unable to access sensitive information in a public space.
Another way to create a new invoice is to simply click the + New icon, then select Invoice.
If you need help recording your invoice payments after sending them, please check this article for a guide: Record invoice payments in QuickBooks Online.
Check out other help resources in our general support page. Select a topic, then look for an article of your choice.
I'm all ears if you have other questions with QuickBooks Online. You can reply here or create a new thread. I'll respond to you with the steps and details.
