I applied online. The process took 1 day. I interviewed at ASDA (Bristol, England) in Jul 2016
Interview
Asda Magic days are done in groups, there are some teambuilding exercises (e.g. we took down as many facts about someone else in the group as possible and then shared them among the group) and videos to watch and answer questions on, then you are taken for a one-on-one interview (which is more of a quick, informal kind of chat and really nothing too taxing or difficult)
Fairly straightforward, just asked about me and then work experience I had done, a few tell me a time questions then they took me round the shop for an activity
It was an easy interview process for me, they explained everything very very clearly and lots of lots of help was given to arrange the times and dates of the calls and interview.
Applied online and got sent a job simulation test. Completed the test and then got a call to come in for an interview. Went in for the interview and it was general questions about what makes good customer service.