My invoices aren’t sending. Some go through, some dont. What would be causing this?

Sending invoices is a great way to let the customer know how much they owe you. Having trouble performing this process can delay your work. Don’t worry, I’m here with the steps to make sure you can send invoices to them seamlessly, @joshuabower165.

Before we proceed with the troubleshooting steps, I just want to share some possible reasons why invoices are undelivered:

• The email address was entered incorrectly.
• There was a temporary issue with the recipient's email server.

If verified that’s not the issue, I recommend asking your customer to check their junk mail and spam folders to find the email. If they don’t see it there, let’s clear and then re-enter your email address to refresh the connection. Here's how:

1. Sign in to your QuickBooks Online (QBO) account and click the Settings icon.
2. Then, under Your Company, choose Account and settings
3. Next, select Company and click the edit icon in the Contact info section.
4. Clear the Company email field and enter the desired address as is, even if it appears correct. 
5. Click Save, then Done.
6. After that, send yourself a test transaction.
7. If the same thing happens, try using a different email address that has a different domain (for instance, if you were using a Gmail email address, try a Hotmail or Yahoo address instead).

If the issue persists, please proceed to Solution 3 of this article: 3 solutions for you when customers aren't receiving your emails.

Once everything is fine, you can now email invoices to your customer smoothly. 

You'll want to modify your email template or sales forms to make them more personalised and reflect your business identity. This further helps to widen the connection with your customer. To get started, feel free to visit this link: Customise invoices, quotes, and sales receipts in QuickBooks Online.

Let me know how it goes and please post a reply below for the updates. Also, if you have additional follow-up questions about sending invoices, feel free to get back here in this thread. I'm always willing and ready to assist you further. Have a great day ahead.