diff --git a/prototype/src/main/java/org/hso/ecommerce/action/shop/CreateOrderAction.java b/prototype/src/main/java/org/hso/ecommerce/action/shop/CreateOrderAction.java
index 854be3a..0102ced 100644
--- a/prototype/src/main/java/org/hso/ecommerce/action/shop/CreateOrderAction.java
+++ b/prototype/src/main/java/org/hso/ecommerce/action/shop/CreateOrderAction.java
@@ -13,6 +13,7 @@ import org.hso.ecommerce.entities.warehouse.WarehouseBookingPositionSlotEntry;
 
 import java.sql.Timestamp;
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
 
@@ -101,7 +102,14 @@ public class CreateOrderAction {
         for (OrderItem item : orderItems) {
             int needed = item.quantity;
 
+            // Sort for most empty slot first;
+            item.availableSlots.sort(Comparator.comparingInt(a -> a.newSumSlot));
+
             for (WarehouseBookingPositionSlotEntry slot : item.availableSlots) {
+                if (slot.newSumSlot == 0) {
+                    continue;
+                }
+
                 int remove = Math.min(slot.newSumSlot, needed);
                 needed -= remove;