diff --git a/src/handlers/next/saleor-async-webhook.test.ts b/src/handlers/next/saleor-async-webhook.test.ts
index b61bda5..3d03b41 100644
--- a/src/handlers/next/saleor-async-webhook.test.ts
+++ b/src/handlers/next/saleor-async-webhook.test.ts
@@ -16,6 +16,9 @@ describe("SaleorAsyncWebhook", () => {
         ? {
             domain: "example.com",
             token: "mock-token",
+            jwks: "",
+            saleorApiUrl: "https://example.com/graphql/",
+            appId: "12345",
           }
         : undefined,
     set: vi.fn(),
@@ -34,7 +37,7 @@ describe("SaleorAsyncWebhook", () => {
     asyncEvent: "PRODUCT_UPDATED",
     webhookPath,
     query: "subscription { event { ... on ProductUpdated { product { id }}}}",
-  };
+  } as const;
 
   const saleorAsyncWebhook = new SaleorAsyncWebhook(validAsyncWebhookConfiguration);
 
@@ -83,7 +86,13 @@ describe("SaleorAsyncWebhook", () => {
       baseUrl: "example.com",
       event: "product_updated",
       payload: { data: "test_payload" },
-      authData: { domain: "example.com", token: "token" },
+      authData: {
+        domain: "example.com",
+        token: "token",
+        jwks: "",
+        saleorApiUrl: "https://example.com/graphql/",
+        appId: "12345",
+      },
     }));
 
     // Test handler - will throw error if mocked context is not passed to it
diff --git a/src/handlers/next/saleor-async-webhook.ts b/src/handlers/next/saleor-async-webhook.ts
index 5a4c5b5..3781dc1 100644
--- a/src/handlers/next/saleor-async-webhook.ts
+++ b/src/handlers/next/saleor-async-webhook.ts
@@ -4,7 +4,7 @@ import { NextApiHandler, NextApiRequest, NextApiResponse } from "next";
 import { APL } from "../../APL";
 import { createDebug } from "../../debug";
 import { gqlAstToString } from "../../gql-ast-to-string";
-import { WebhookEvent, WebhookManifest } from "../../types";
+import { AsyncWebhookEventType, WebhookManifest } from "../../types";
 import {
   processAsyncSaleorWebhook,
   SaleorWebhookError,
@@ -17,7 +17,7 @@ const debug = createDebug("SaleorAsyncWebhook");
 interface WebhookManifestConfigurationBase {
   name?: string;
   webhookPath: string;
-  asyncEvent: WebhookEvent;
+  asyncEvent: AsyncWebhookEventType;
   isActive?: boolean;
   apl: APL;
 }
@@ -66,7 +66,7 @@ export class SaleorAsyncWebhook<TPayload = unknown> {
 
   query?: string;
 
-  asyncEvent: WebhookEvent;
+  asyncEvent: AsyncWebhookEventType;
 
   isActive?: boolean;
 
diff --git a/src/types.ts b/src/types.ts
index 1f93a2c..0e38ac0 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -45,7 +45,138 @@ export type Permission =
 
 export type AppPermission = Permission;
 
-export type WebhookEvent = string;
+/**
+ * @see https://github.com/saleor/saleor/blob/main/saleor/graphql/schema.graphql#L1505
+ */
+export type AsyncWebhookEventType =
+  | "ADDRESS_CREATED"
+  | "ADDRESS_UPDATED"
+  | "ADDRESS_DELETED"
+  | "APP_INSTALLED"
+  | "APP_UPDATED"
+  | "APP_DELETED"
+  | "APP_STATUS_CHANGED"
+  | "ATTRIBUTE_CREATED"
+  | "ATTRIBUTE_UPDATED"
+  | "ATTRIBUTE_DELETED"
+  | "ATTRIBUTE_VALUE_CREATED"
+  | "ATTRIBUTE_VALUE_UPDATED"
+  | "ATTRIBUTE_VALUE_DELETED"
+  | "CATEGORY_CREATED"
+  | "CATEGORY_UPDATED"
+  | "CATEGORY_DELETED"
+  | "CHANNEL_CREATED"
+  | "CHANNEL_UPDATED"
+  | "CHANNEL_DELETED"
+  | "CHANNEL_STATUS_CHANGED"
+  | "GIFT_CARD_CREATED"
+  | "GIFT_CARD_UPDATED"
+  | "GIFT_CARD_DELETED"
+  | "GIFT_CARD_STATUS_CHANGED"
+  | "GIFT_CARD_METADATA_UPDATED"
+  | "MENU_CREATED"
+  | "MENU_UPDATED"
+  | "MENU_DELETED"
+  | "MENU_ITEM_CREATED"
+  | "MENU_ITEM_UPDATED"
+  | "MENU_ITEM_DELETED"
+  | "ORDER_CREATED"
+  | "ORDER_CONFIRMED"
+  | "ORDER_FULLY_PAID"
+  | "ORDER_UPDATED"
+  | "ORDER_CANCELLED"
+  | "ORDER_FULFILLED"
+  | "ORDER_METADATA_UPDATED"
+  | "FULFILLMENT_CREATED"
+  | "FULFILLMENT_CANCELED"
+  | "FULFILLMENT_APPROVED"
+  | "FULFILLMENT_METADATA_UPDATED"
+  | "DRAFT_ORDER_CREATED"
+  | "DRAFT_ORDER_UPDATED"
+  | "DRAFT_ORDER_DELETED"
+  | "SALE_CREATED"
+  | "SALE_UPDATED"
+  | "SALE_DELETED"
+  | "SALE_TOGGLE"
+  | "INVOICE_REQUESTED"
+  | "INVOICE_DELETED"
+  | "INVOICE_SENT"
+  | "CUSTOMER_CREATED"
+  | "CUSTOMER_UPDATED"
+  | "CUSTOMER_DELETED"
+  | "CUSTOMER_METADATA_UPDATED"
+  | "COLLECTION_CREATED"
+  | "COLLECTION_UPDATED"
+  | "COLLECTION_DELETED"
+  | "COLLECTION_METADATA_UPDATED"
+  | "PRODUCT_CREATED"
+  | "PRODUCT_UPDATED"
+  | "PRODUCT_DELETED"
+  | "PRODUCT_METADATA_UPDATED"
+  | "PRODUCT_MEDIA_CREATED"
+  | "PRODUCT_MEDIA_UPDATED"
+  | "PRODUCT_MEDIA_DELETED"
+  | "PRODUCT_VARIANT_CREATED"
+  | "PRODUCT_VARIANT_UPDATED"
+  | "PRODUCT_VARIANT_DELETED"
+  | "PRODUCT_VARIANT_METADATA_UPDATED"
+  | "PRODUCT_VARIANT_OUT_OF_STOCK"
+  | "PRODUCT_VARIANT_BACK_IN_STOCK"
+  | "PRODUCT_VARIANT_STOCK_UPDATED"
+  | "CHECKOUT_CREATED"
+  | "CHECKOUT_UPDATED"
+  | "CHECKOUT_METADATA_UPDATED"
+  | "NOTIFY_USER"
+  | "PAGE_CREATED"
+  | "PAGE_UPDATED"
+  | "PAGE_DELETED"
+  | "PAGE_TYPE_CREATED"
+  | "PAGE_TYPE_UPDATED"
+  | "PAGE_TYPE_DELETED"
+  | "PERMISSION_GROUP_CREATED"
+  | "PERMISSION_GROUP_UPDATED"
+  | "PERMISSION_GROUP_DELETED"
+  | "SHIPPING_PRICE_CREATED"
+  | "SHIPPING_PRICE_UPDATED"
+  | "SHIPPING_PRICE_DELETED"
+  | "SHIPPING_ZONE_CREATED"
+  | "SHIPPING_ZONE_UPDATED"
+  | "SHIPPING_ZONE_DELETED"
+  | "SHIPPING_ZONE_METADATA_UPDATED"
+  | "STAFF_CREATED"
+  | "STAFF_UPDATED"
+  | "STAFF_DELETED"
+  | "TRANSACTION_ACTION_REQUEST"
+  | "TRANSACTION_ITEM_METADATA_UPDATED"
+  | "TRANSLATION_CREATED"
+  | "TRANSLATION_UPDATED"
+  | "WAREHOUSE_CREATED"
+  | "WAREHOUSE_UPDATED"
+  | "WAREHOUSE_DELETED"
+  | "WAREHOUSE_METADATA_UPDATED"
+  | "VOUCHER_CREATED"
+  | "VOUCHER_UPDATED"
+  | "VOUCHER_DELETED"
+  | "VOUCHER_METADATA_UPDATED"
+  | "OBSERVABILITY"
+  | "THUMBNAIL_CREATED";
+
+/**
+ * @see https://github.com/saleor/saleor/blob/main/saleor/graphql/schema.graphql#L1995
+ */
+export type SyncWebhookEventType =
+  | "PAYMENT_LIST_GATEWAYS"
+  | "PAYMENT_AUTHORIZE"
+  | "PAYMENT_CAPTURE"
+  | "PAYMENT_REFUND"
+  | "PAYMENT_VOID"
+  | "PAYMENT_CONFIRM"
+  | "PAYMENT_PROCESS"
+  | "CHECKOUT_CALCULATE_TAXES"
+  | "ORDER_CALCULATE_TAXES"
+  | "SHIPPING_LIST_METHODS_FOR_CHECKOUT"
+  | "CHECKOUT_FILTER_SHIPPING_METHODS"
+  | "ORDER_FILTER_SHIPPING_METHODS";
 
 export interface AppExtension {
   /** Name which will be displayed in the dashboard */
@@ -69,8 +200,8 @@ export interface AppExtension {
 
 export interface WebhookManifest {
   name: string;
-  asyncEvents?: WebhookEvent[];
-  syncEvents?: WebhookEvent[];
+  asyncEvents?: AsyncWebhookEventType[];
+  syncEvents?: SyncWebhookEventType[];
   /** If query is not provided, the default webhook payload will be used */
   query?: string;
   /** The full URL of the endpoint where request will be sent */