Asda will undergo a huge raft of changes to store operations which will put close to 300 jobs at risk.
The supermarket chain has proposed that overnight restocking shifts at 184 supermarkets are moved to the daytime, in a move which will see 211 night shift manager roles under threat.
It said the changes will also affect 4,137 hourly paid workers, who will see shift patterns moved to daytime and lose their night shift pay premium, of at least £2.52 per hour. It also revealed a 22% cut to the working hours of all in-store Post Office shops.