Direct link to an invoice in Membership 2 Pro

Hi,

I would like to send people links to their invoice to pay but when I provide the links it takes them to a 404 page. Ideally I'd like to send them a link like this

https://domain.org/ms_invoice/invoice-for-org-student-testmembership/

And then user Test Membership could login and pay their invoice

However, currently I get a 404

Thanks!