Hello, there is a payment on our instance(lilac). However, we would like to give students the opportunity to get acquainted with a paid course (let’s say 2 modules for free), and in order to continue studying, you need to pay.
Open edX has an audit mode and then the student can buy the certificate if they want. But this does not suit us.
How can this be done? And is it possible? (important to note we want minimal intervention in the Open edX code)