diff --git a/frontend/src/table/DialogWindow.vue b/frontend/src/table/DialogWindow.vue
index e269aac..8a8c432 100644
--- a/frontend/src/table/DialogWindow.vue
+++ b/frontend/src/table/DialogWindow.vue
@@ -37,7 +37,7 @@ const emits = defineEmits<{
 
 async function handleSave() {
     const mode = props.updateMode ? 'update' : 'create';
-    const result = props.validate(createItem.value as T, mode);
+    const result = await props.validate(createItem.value as T, mode);
     if (result.status === 'error') {
         errorStore.summon(result.message);
         return;
diff --git a/frontend/src/types/validate.type.ts b/frontend/src/types/validate.type.ts
index ee1e765..0265754 100644
--- a/frontend/src/types/validate.type.ts
+++ b/frontend/src/types/validate.type.ts
@@ -1,3 +1,5 @@
 import type { IEntity } from "./entity.type";
 
-export type Validate<T extends IEntity> = (data: T, mode: "update" | "create") => { status: "error" | "success", message?: string }
\ No newline at end of file
+export type ValidateResult = { status: "error" | "success", message?: string }
+
+export type Validate<T extends IEntity> = (data: T, mode: "update" | "create") => ValidateResult | Promise<ValidateResult>
\ No newline at end of file