Storyline 360 - Sending a passing score to LMS

Hello all,

I've browsed through a few discussions but don't believe any of them gave me a solution to what I'm trying to do.

I have a .story file with used the default Storyline quiz slides and result slide for tracking. They must get 80% or higher to get completion credit. So far so good.

However, this is a branching situation, so some learner won't be required to view most of the content nor the quiz. I have a button that will take them to the last slide ("Thanks for taking this training"). However, as they're not taking the quiz, they won't get credit for completion. So I wanted to set it up so that upon clicking the button (or by whatever other means), and exiting the course, it will send a passing score to the LMS.

Any suggestions?