Creating a data sharing opt-out link in Catalog

Community Member

We use Catalog to manage our Canvas course registrations. One of our upcoming classes is taught via a partnership between our org and two others. Obviously when people register for the course, we receive their basic contact info, but we want to provide an option for users to opt out of sharing that info with our two external course partners. Is there a way to create an opt-out link or button in the Canvas description? Would I have to do that in the Canvas module for the course itself instead? Or is our best bet just asking folks to send me an email when they register if they'd prefer to opt out of info sharing?