Invoice not sent to customer.

PeterO · ‎January 28, 2026

I send an invoice every week to the same customer. Invoices are duplicated each time and the customers email address is automatically filled. I got a message in QBO saying "We can't reach this customer. Please verify the email address with your customer or use a different email.". The email address is correct but the "Send" button is greyed out. I deleted all my cookie, etc. but that didn't help. I tried using the QB app instead and it appears that the invoice went through (I will check with my customer). Why is QBO blocking invoice delivery to an email address that is active? This is not on the customers end because the email is never sent from QBO. I pay for QBO for the convenience of delivering invoices. I do not want to print them to a pdf and manually email.

RheaMaeH

We want to ensure that you have a positive experience, Peter.

Sending invoices to your customers is crucial to ensuring seamless business operations without disruptions. I’ll direct you to our dedicated support team to help resolve this promptly.

Since you’ve already cleared your cookies and sent the invoice via the QBO app, the next recommended step is to contact our live support team. They have the tools to securely review your account, investigate why email delivery is being blocked, and resolve the issue for you.

Here's how you can reach them:

Log in to your QBO account via a web browser.
Go to the (?) Help icon in the upper right corner.
Select the Search tab and search for questions or keywords.
Click Contact Us.
Hit Chat with us or Have us call you to start a conversation with our support expert.

To ensure timely assistance, please check our support hours: Get help with QuickBooks products and services.

If you have any follow-up questions, feel free to leave a comment below.

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Invoice not sent to customer.

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