diff --git a/processor/package.json b/processor/package.json
index 7ad9ab6..8bfcc2b 100644
--- a/processor/package.json
+++ b/processor/package.json
@@ -11,8 +11,8 @@
     "build": "rimraf ./dist && tsc",
     "watch": "nodemon -q --ignore '**/*.spec.ts' src/index.ts",
     "lint": "eslint . --ext .ts",
-    "prettier": "prettier --write '**/*.{js,ts}'",
     "prettier:check": "prettier --check '**/*.{js,ts}'",
+    "fix": "eslint . --ext .ts --fix && prettier --write '**/*.{js,ts}'",
     "test": "jest --detectOpenHandles --clearMocks --colors --config jest.config.cjs --ci --ci --reporters=default --reporters=jest-junit --coverage",
     "test:watch": "jest --watch --clearMocks --detectOpenHandles --colors --config jest.config.cjs",
     "preinstall": "npx npm-force-resolutions",
diff --git a/processor/tests/service/payment.service.spec.ts b/processor/tests/service/payment.service.spec.ts
index 7278675..749e48f 100644
--- a/processor/tests/service/payment.service.spec.ts
+++ b/processor/tests/service/payment.service.spec.ts
@@ -1,6 +1,7 @@
 import { describe, test, expect, jest, beforeEach, afterEach, it } from '@jest/globals';
 import { CustomFields, Payment } from '@commercetools/platform-sdk';
 import {
+  handlePaymentWebhook,
   getCreatePaymentUpdateAction,
   getPaymentCancelRefundActions,
   handleCreatePayment,
@@ -15,19 +16,20 @@ import {
 } from '../../src/utils/constant.utils';
 import { PaymentStatus, Payment as molliePayment } from '@mollie/api-client';
 import { CTTransactionState } from '../../src/types/commercetools.types';
-import {
-  cancelPaymentRefund,
-  createMolliePayment,
-  getPaymentById,
-  listPaymentMethods,
-} from '../../src/mollie/payment.mollie';
+import { listPaymentMethods, getPaymentById, createMolliePayment, cancelPaymentRefund } from '../../src/mollie/payment.mollie';
 import CustomError from '../../src/errors/custom.error';
 import { logger } from '../../src/utils/logger.utils';
+import { getPaymentByMolliePaymentId, updatePayment } from '../../src/commercetools/payment.commercetools';
 const uuid = '5c8b0375-305a-4f19-ae8e-07806b101999';
 jest.mock('uuid', () => ({
   v4: () => uuid,
 }));
 
+jest.mock('../../src/commercetools/payment.commercetools', () => ({
+  getPaymentByMolliePaymentId: jest.fn(),
+  updatePayment: jest.fn(),
+}));
+
 jest.mock('../../src/service/payment.service.ts', () => ({
   ...(jest.requireActual('../../src/service/payment.service.ts') as object),
   getCreatePaymentUpdateAction: jest.fn(),
@@ -734,3 +736,89 @@ describe('Test handlePaymentCancelRefund', () => {
     });
   });
 });
+
+describe('Test handlePaymentWebhook', () => {
+  it('should handle with no action', async () => {
+    const fakePaymentId = 'tr_XXXX';
+    (getPaymentById as jest.Mock).mockReturnValue({
+      id: fakePaymentId,
+      status: 'open',
+      amount: {
+        currency: 'EUR',
+        value: '10.00',
+      },
+    });
+    (getPaymentByMolliePaymentId as jest.Mock).mockReturnValue({
+      transactions: [
+        {
+          interactionId: fakePaymentId,
+          state: 'Initial',
+        },
+      ],
+    });
+    await handlePaymentWebhook(fakePaymentId);
+    expect(logger.debug).toBeCalledTimes(2);
+    expect(logger.debug).toBeCalledWith(`SCTM - handlePaymentWebhook - paymentId:${fakePaymentId}`);
+    expect(logger.debug).toBeCalledWith(`handlePaymentWebhook - No actions needed`);
+  });
+
+  it('should handle with add action', async () => {
+    const fakePaymentId = 'tr_XXXX';
+    (getPaymentById as jest.Mock).mockReturnValue({
+      id: fakePaymentId,
+      status: 'open',
+      amount: {
+        currency: 'EUR',
+        value: '10.00',
+      },
+    });
+    const ctPayment = {
+      transactions: [],
+    };
+    (getPaymentByMolliePaymentId as jest.Mock).mockReturnValue(ctPayment);
+    await handlePaymentWebhook(fakePaymentId);
+    expect(updatePayment as jest.Mock).toBeCalledTimes(1);
+    expect(updatePayment as jest.Mock).toBeCalledWith(ctPayment, [
+      {
+        action: 'addTransaction',
+        transaction: {
+          amount: { centAmount: 1000, currencyCode: 'EUR', fractionDigits: 2, type: 'centPrecision' },
+          interactionId: 'tr_XXXX',
+          state: 'Initial',
+          type: 'Charge',
+        },
+      },
+    ]);
+  });
+
+  it('should handle with update action', async () => {
+    const fakePaymentId = 'tr_XXXX';
+    (getPaymentById as jest.Mock).mockReturnValue({
+      id: fakePaymentId,
+      status: 'paid',
+      amount: {
+        currency: 'EUR',
+        value: '10.00',
+      },
+    });
+    const ctPayment = {
+      transactions: [
+        {
+          id: 'test',
+          interactionId: fakePaymentId,
+          state: 'Initial',
+        },
+      ],
+    };
+    (getPaymentByMolliePaymentId as jest.Mock).mockReturnValue(ctPayment);
+    await handlePaymentWebhook(fakePaymentId);
+    expect(updatePayment as jest.Mock).toBeCalledTimes(1);
+    expect(updatePayment as jest.Mock).toBeCalledWith(ctPayment, [
+      {
+        action: 'changeTransactionState',
+        transactionId: 'test',
+        state: 'Success',
+      },
+    ]);
+  });
+});