Several factors can interrupt the system, making it unavailable to pay invoices online, Ceris. I'm here to lay them out for you and provide instructions on how to fix them.

To begin with, ensure you've enabled the option to pay electronically through the Accounts and settings menu of the Gear icon.

Please know that you need an active Payments account to use this feature. After turning on and setting up everything, resend the invoice.

However, if you have an active account that is already established accordingly, kindly connect with PayPal support or the service provider and check if there is system maintenance on their end. If none, let's go through the browser troubleshooting steps. It can help verify and resolve excessive data build-up that impacts the program's performance.

We can start by resending the invoice and letting your client access the sent invoice through the private browser. Please refer to these shortcut keys that vary by browser type:

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

If your client has the option to pay electronically, they'll need to reopen their regular browser and clear its cache and cookies. Doing so eliminates unnecessary data that impacts the system's function and behavior. They can also consider using another supported browser if the problem persists.

You may also check this article once you need to add or remove details on your sales forms and tailor them according to your preference: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Your queries matter to us. If you have more questions about accepting payments online or need assistance handling your transactions or reports, tag me on this thread. I'm always prepared to help you promptly.