diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/gui/BauGUICommand.java b/BauSystem_Main/src/de/steamwar/bausystem/features/gui/BauGUICommand.java
index 0086dee2..16a16904 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/gui/BauGUICommand.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/gui/BauGUICommand.java
@@ -75,6 +75,7 @@ public class BauGUICommand extends SWCommand {
                 BauSystem.MESSAGE.send("GUI_IMPORT_CODE-SUCCESSFUL", p);
             }
         } catch (Exception e) {
+            e.printStackTrace();
             BauSystem.MESSAGE.send("GUI_IMPORT_INVALID-CODE", p);
         }
     }
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/gui/editor/BauGuiImportExport.java b/BauSystem_Main/src/de/steamwar/bausystem/features/gui/editor/BauGuiImportExport.java
index 8346f4f1..b454498d 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/gui/editor/BauGuiImportExport.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/gui/editor/BauGuiImportExport.java
@@ -20,13 +20,11 @@
 package de.steamwar.bausystem.features.gui.editor;
 
 import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.features.gui.BauGUI;
 import lombok.experimental.UtilityClass;
 import org.bukkit.entity.Player;
 
-import java.util.Base64;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.stream.Collectors;
 
 @UtilityClass
@@ -56,7 +54,6 @@ public class BauGuiImportExport {
         if (st.length() / 8 == (int) Math.ceil(st.length() / 8.0)) {
             bytes = new byte[st.length() / 8];
         }
-        System.out.println(st.toString());
 
         int index = 0;
         while (st.length() > 0) {
@@ -81,8 +78,17 @@ public class BauGuiImportExport {
 
     private static void binaryConvert(StringBuilder st, String s, char identifier) {
         StringBuilder current = new StringBuilder().append(identifier).append(s);
+        char reverseIdentifier = identifier == '0' ? '1' : '0';
+        boolean added = false;
         while (current.length() % 4 != 0) {
-            current.insert(0, '0');
+            current.insert(0, reverseIdentifier);
+            added = true;
+        }
+        if (!added) {
+            current.insert(0, reverseIdentifier);
+            current.insert(0, reverseIdentifier);
+            current.insert(0, reverseIdentifier);
+            current.insert(0, reverseIdentifier);
         }
         while (current.length() > 4) {
             st.append('1').append(current.substring(0, 4));
@@ -109,10 +115,54 @@ public class BauGuiImportExport {
         size *= 9;
 
         st.delete(0, 8);
-        System.out.println(st.toString());
-        // BauGUI.getITEMS().containsKey()
-        // TODO: Implement this @yoyo
+        List<String> blobs = new ArrayList<>();
+        if (st.length() > 0) {
+            blobs.add("");
+        }
+        while (st.length() > 4) {
+            String current = st.substring(0, 5);
+            int last = blobs.size() - 1;
+            blobs.set(last, blobs.get(last) + current.substring(1));
+            if (current.startsWith("0")) {
+                blobs.add("");
+            }
+            st.delete(0, 5);
+        }
+        blobs.removeIf(String::isEmpty);
+        blobs.replaceAll(s -> {
+            char start = s.charAt(0);
+            for (int i = 0; i < s.length(); i++) {
+                if (s.charAt(i) != start) {
+                    return s.substring(i);
+                }
+            }
+            return s;
+        });
 
+        int currentIndex = 0;
+        Map<Integer, Integer> map = new HashMap<>();
+        boolean initial = true;
+        for (String s : blobs) {
+            if (s.startsWith("0")) {
+                currentIndex += Integer.parseInt(s.substring(1), 2);
+            } else {
+                if (!initial) {
+                    currentIndex++;
+                }
+                initial = false;
+                s = s.substring(1);
+                int itemID = Integer.parseInt(s, 2);
+                if (!BauGUI.getITEMS().containsKey(itemID)) {
+                    BauSystem.MESSAGE.send("GUI_IMPORT_INVALID-CODE", p);
+                    return false;
+                }
+                map.put(itemID, currentIndex);
+            }
+        }
+
+        BauGuiMapping mapping = BauGuiMapping.getGuiMapping(p);
+        mapping.setMapping(map);
+        mapping.setSize(size);
         return true;
     }
 }