Hello, settlemoircpa.
Good to see you here in the Community.
There might be a browser issue, which is why the client is unable to access the request. Let's first perform some troubleshooting to isolate and fix the issue.To start with, the client can use a private browser or incognito to check he can access the My Accountant tab.
You can check below for the keyboard shortcuts based on the browser you're using.
Google Chrome: Ctrl + Shift + N
Mozilla Firefox: Ctrl + Shift + P
Internet Explorer: Ctrl + Shift + P
Safari: Command + Shift + N
If it works without the error, please recommend him to go back to the browser and clear the cache. This way to refresh your server and boost the browser's performance.
You may check this article sharing a documents to your accountant in QuickBooks Online: How to use the My Accountant tab.
Feel free to get back in touch with me if you have other matching concerns in QuickBooks. I'd love to help.
