var itemLocations = _itemLocationService.SelectAllBy(l => l.ItemID == moveModel.ItemID && l.SizeID == moveModel.SizeID && l.ID != itemLocation.ID).ToList();
            var logs = new List<ItemLocationLog>();

            int neededQty = moveModel.Quantity;
            foreach (var item in itemLocations)
            {
                if (neededQty == 0)
                {
                    break;
                }
                if (item.Quantity >= neededQty)
                {
                    logs.Add(new ItemLocationLog
                    {
                        ItemID = moveModel.ItemID,
                        LocationFromID = item.LocationID,
                        LocationToID = newItemLocation.LocationID,
                        CreatedBy = userId,
                        CreatedOn = DateTime.Now,
                        Quantity = neededQty,
                        SizeID = moveModel.SizeID
                    });

                    item.Quantity -= neededQty;
                    neededQty = 0;
                    break;
                }
                else if (item.Quantity > 0)
                {
                    logs.Add(new ItemLocationLog
                    {
                        ItemID = moveModel.ItemID,
                        LocationFromID = item.LocationID,
                        LocationToID = newItemLocation.LocationID,
                        CreatedBy = userId,
                        CreatedOn = DateTime.Now,
                        Quantity = item.Quantity,
                        SizeID = moveModel.SizeID
                    });
                    neededQty -= item.Quantity;
                    item.Quantity = 0;
                }
            }

            if (neededQty > 0)
            {
                logs.Add(new ItemLocationLog
                {
                    ItemID = moveModel.ItemID,
                    LocationFromID = null,
                    LocationToID = newItemLocation.LocationID,
                    CreatedBy = userId,
                    CreatedOn = DateTime.Now,
                    Quantity = neededQty,
                    SizeID = moveModel.SizeID
                });
            }

            _itemLocationService.Save(itemLocations);
            _itemLocationLogService.Save(logs);