Tracking/Validating Coupons in Marketing Hub

Tracking/Validating Coupons in Marketing Hub

I created an advanced campaign in Marketing Hub that included a coupon using the merge tag. I deployed a test of the campaign, but cannot figure out where/how to validate the coupon once it was sent. There are some instructions on this that relate to Campaigns, but they don't seem to carry over to Marketing Hub. How do I track these codes and validate them in Marketing Hub?