I appreciate you for reaching out to us here in the Community, @svh1201. I'm here to help you with your concern about your emailed invoice.
The error message you're client is getting can be affected by his or her browser's cache. To sort this out, you can let your customer open the email using a private window and pay the invoice from there. Here are the keyboard shortcuts for Google Chrome and other browsers:
- Google Chrome: Ctrl + Shift + N
- Safari 11 or newer: ⌘ + Shift + N
- Mozilla Firefox: Ctrl + Shift + P
- Microsoft Edge: Ctrl + Shift + P
Once the email is opened using an incognito window, let your customer click on the Review and Pay button to narrow down the result.
If it works fine, he or she can go back to the original browser and clear its cache to start fresh.
In case the error message continues, I'd recommend reaching out to our Support Team for further assistance. This way, a live representative can review your account securely and check the online transaction.
For more tips about accepting electronic payments for your sales transactions, you may open this article: Take and process payments in QuickBooks Online.
Additionally, you can learn more about deposit times for QuickBooks Payments from this link: Find out when QuickBooks Payments deposits customer payments.
Let me know if you have any other questions about your online invoices by adding a comment below. I'm more than happy to help. Have a good one!
