First you send in application and then 2 weeks later invited for an interview online. It was a 20 min online interview with two people one alumni and one teacher. If you are well prepared it is not too difficult,
I applied through an employee referral. The process took 2 months. I interviewed at HEC Paris (Paris)
Interview
Overall, a good interview experience. I had Multiple rounds, but it was a tough decision in the end. They were very accommodating and helpful. The interview was very insightful and smooth sailing.