diff --git a/frontend/src/ts/account_applications/component/field/DropdownTreeViewComponent.ts b/frontend/src/ts/account_applications/component/field/DropdownTreeViewComponent.ts
index edaac060..6ab23fee 100644
--- a/frontend/src/ts/account_applications/component/field/DropdownTreeViewComponent.ts
+++ b/frontend/src/ts/account_applications/component/field/DropdownTreeViewComponent.ts
@@ -61,6 +61,8 @@ export class DropdownTreeViewComponent extends InputControl {
   public valueChangeEvent: Event<TreeItemDto> = new Event<TreeItemDto>();
   @AdvancedProperty()
   public skipInitialSelection: boolean;
+  @AdvancedProperty()
+  public allowClear: boolean = true;
   @NotNull()
   public preferBusinessId: boolean = false;
   private rpcService: TreeItemRpcService;
@@ -272,7 +274,7 @@ export class DropdownTreeViewComponent extends InputControl {
 
   onKeyDown(event: KeyboardEvent): void {
     const isInput = (event.target as HTMLElement).tagName === 'INPUT';
-    if (EventUtils.isKeyBackspace(event) && !isInput && this.value) {
+    if (EventUtils.isKeyBackspace(event) && !isInput && this.value && this.allowClear) {
       this.clearValue();
       event.stopPropagation();
       event.preventDefault();