Hi, @rigneyhomecraft, and @LALS3.
We are aware that some QuickBooks Online users are having issues sending invoices to their customers. Our engineering team is working hard to resolve the issue as soon as possible.
What we can do for now is to download the sales forms and send this manually through other resources outside QuickBooks: Download and save sales forms and statements in QuickBooks Online.
We will share an update as soon as we know more. You can also check for site updates from time to time using the following links:
https: //status.quickbooks.intuit.com/.
I appreciate your patience as we work toward a solution.
