I have an invoice that I need to receive payment against, but I cannot get it to appear to receive against.
I'd be glad to help receive your invoice payment in QuickBooks Online, @SeanPe.
We can perform some steps to fix this. There are times that the browser is full of frequently accessed pages, thus causing some unusual responses. Let's log in to your account using a private browser.
Ctrl + Shift + N for Google Chrome
Ctrl + Shift + P for Mozilla Firefox and Microsoft Edge
Command + Shift + N for Safari
Once signed in, let's get back to the All sales tab and click the Receive payment option. If it works, go back to your default browser and clear its cache and cookies to refresh the system. If the issue persists, I'd recommend using other supported browsers in accessing the tab.