Group interview which lasted 2 hours from 6-8pm (we were not told beforehand it would take this long). Had to introduce ourselves and our favourite product, then make a poster in groups about a product and present it. We could use our phones for research, and had to talk about ingredients, ethical facts, who we would recommend it to, and what other products to sell with it. Then we had to pair up with someone and recommend them 2 products to go with their favourite product and then present this to the group. We were allowed to make a bath bomb at the end, and then were given a free sample.
The other candidates were lovely and it was fun at the time, but I didn't get the job for not having enough product knowledge. I had prepared a lot for the interview so this was quite disappointing, but I think because it was group work, it can sometimes be hard to stand out unless you are very confident. They seem more concerned about how you perform in the interview than any experience you may have. For context, I worked in retail for years, including in management positions, but didn't get the trial shift :/
There was no individual interview either which is a shame because you don't get to discuss your experience or any research/product knowledge with them on a one to one basis