diff --git a/src/app/editor/character-editor/inventory-slot-editor/inventory-slot-characteristic-editor/inventory-slot-characteristic-editor.component.ts b/src/app/editor/character-editor/inventory-slot-editor/inventory-slot-characteristic-editor/inventory-slot-characteristic-editor.component.ts
index 12ed5b4..ce6640e 100644
--- a/src/app/editor/character-editor/inventory-slot-editor/inventory-slot-characteristic-editor/inventory-slot-characteristic-editor.component.ts
+++ b/src/app/editor/character-editor/inventory-slot-editor/inventory-slot-characteristic-editor/inventory-slot-characteristic-editor.component.ts
@@ -6,6 +6,7 @@ import {MatTable, MatTableDataSource} from "@angular/material/table";
 import {
   InventoryCharacteristic
 } from "../../../../project/game-model/inventory/intentory-slots/InventoryCharacteristic";
+import {MatSnackBar} from "@angular/material/snack-bar";
 
 @Component({
   selector: 'app-inventory-slot-characteristic-editor',
@@ -23,6 +24,9 @@ export class InventorySlotCharacteristicEditorComponent implements OnInit{
   displayedColumns: string[] = ['increasing', 'decreasing', 'edit', 'delete']
   editedCharacteristic: InventoryCharacteristic | null = null;
 
+  constructor(private snackbar: MatSnackBar) {
+  }
+
   ngOnInit() {
     this.itemgroups.forEach(itemgroup => {
       this.availableCharacteristics = this.availableCharacteristics.concat(itemgroup.itemGroupCharacteristics);
@@ -38,7 +42,11 @@ export class InventorySlotCharacteristicEditorComponent implements OnInit{
   }
 
   finishEditing() {
-    this.editedCharacteristic = null;
+    if(this.editedCharacteristic != null && this.editedCharacteristic.isValid()) {
+      this.editedCharacteristic = null;
+    } else if(this.editedCharacteristic != null) {
+      this.snackbar.open("Please select a valid increasing and decreasing Characterstic", "", {duration: 2000});
+    }
   }
 
   onSelectIncreasingCharacteristic(selectedCharacteristic: ItemGroupCharacteristic, slotCharacteristic: InventoryCharacteristic) {