Depends on the number of candidates, but usually some sort of group exercise, a short presentation about a site specific area (KPI of some sort), and then a interview panel.

I received an email for an interview as a team manager in their Zoom Warehouse in Canning town. I was taken into a room which was messy, jackets and clothes on the floor and it smelt like sweat and feet. The interview was quite informal and very clear that no specific questions had really been prepared, I was asked questions such as how would I describe myself as a manager. However, the person conducting my interview seemed more interested in knowing why I was leaving my current company for Ocado and despite me giving an answer each time it still wasn't good enough for them. Not sure why he was so bothered in finding out why I was looking to leave and gave me the impression that moving to Ocado was probably not the best option for my next career move.