MYOB has a setting in the Preferences section under the Emailing tab called "When Emailing Invoices". There is an option you can select which is to have a link in the email to the invoice as well...
Status changed:
New
to Already Exists
Hey Glen_Perry
AccountRight has the ability to attach a PDF copy of the invoice to the email at the time of sending.
I've been able to confirm with our support teams that they've been able to troubleshoot and resolve your issue with the setting not working as it should. I've closed this idea for now as the feature already exists, if you continue to experience an issue feel free to reach out.