At the end of the day if the pickers have not completed the order, can the picking details be saved until the next day. At the moment they log out of ASPluris each night which I think is clearing out their pick quantities. If they stay logged into ASPluris but just logout as a user will the pick quantities remain until the following day when they finish picking the order?

While an order is being picked, the pick is stored in the physical scanner that is being used.  Provided that they use the same scanner, they can continue scanning the next day.