diff --git a/.changeset/payment-iframe-shop-id.md b/.changeset/payment-iframe-shop-id.md
new file mode 100644
index 000000000..506bbece8
--- /dev/null
+++ b/.changeset/payment-iframe-shop-id.md
@@ -0,0 +1,5 @@
+---
+"@shopware-ag/meteor-admin-sdk": patch
+---
+
+Changed `addPaymentIframe` to add `shopId` parameter to iframe url.
\ No newline at end of file
diff --git a/packages/admin-sdk/src/_private/payment/index.spec.ts b/packages/admin-sdk/src/_private/payment/index.spec.ts
index 8d7b65bf6..86ca94afb 100644
--- a/packages/admin-sdk/src/_private/payment/index.spec.ts
+++ b/packages/admin-sdk/src/_private/payment/index.spec.ts
@@ -40,6 +40,7 @@ describe('Private Service Payment', () => {
   let mockModalClose: jest.Mock;
   let mockLocationStartAutoResizer: jest.Mock;
   let mockGetAppInformation: jest.Mock;
+  let mockGetShopId: jest.Mock;
   let eventListeners: Map<string, Set<EventListener>>;
   let mockModalOpen: jest.Mock;
 
@@ -84,6 +85,10 @@ describe('Private Service Payment', () => {
     });
     (context.getAppInformation as jest.Mock) = mockGetAppInformation;
 
+    // Mock context.getShopId
+    mockGetShopId = jest.fn().mockResolvedValue('shop-id-123');
+    (context.getShopId as jest.Mock) = mockGetShopId;
+
     // Clear all mocks
     jest.clearAllMocks();
     mockBroadcastChannelInstance.addEventListener.mockClear();
@@ -126,7 +131,7 @@ describe('Private Service Payment', () => {
         expect(mockGetAppInformation).toHaveBeenCalledTimes(1);
         expect(result.iframeEl).toBeInstanceOf(HTMLIFrameElement);
         expect(result.iframeEl.src).toBe(
-          'https://example.com/payment?service-name=test-app&service-version=1.0.0&shop-url=https://shop.example.com&sw-version=6.5.0&sw-user-language=en-GB&shop-plan=beyond'
+          'https://example.com/payment?service-name=test-app&service-version=1.0.0&shop-url=https://shop.example.com&sw-version=6.5.0&sw-user-language=en-GB&shop-plan=beyond&shop-id=shop-id-123'
         );
         expect(container.contains(result.iframeEl)).toBe(true);
       });
@@ -153,10 +158,18 @@ describe('Private Service Payment', () => {
         const result = await addPaymentIframe(container, baseUrl, options);
 
         expect(result.iframeEl.src).toBe(
-          'https://example.com/payment?service-name=test-app&service-version=1.0.0&shop-url=https://license-aud.shop.example.com&sw-version=6.5.0&sw-user-language=en-GB&shop-plan=premium'
+          'https://example.com/payment?service-name=test-app&service-version=1.0.0&shop-url=https://license-aud.shop.example.com&sw-version=6.5.0&sw-user-language=en-GB&shop-plan=premium&shop-id=shop-id-123'
         );
       });
 
+      it('should default shop-id to an empty value when getShopId returns null', async () => {
+        mockGetShopId.mockResolvedValue(null);
+        const result = await addPaymentIframe(container, baseUrl, options);
+
+        expect(mockGetShopId).toHaveBeenCalledTimes(1);
+        expect(result.iframeEl.src.endsWith('&shop-id=')).toBe(true);
+      });
+
       it('should append iframe to the provided element', async () => {
         const result = await addPaymentIframe(container, baseUrl, options);
 
diff --git a/packages/admin-sdk/src/_private/payment/index.ts b/packages/admin-sdk/src/_private/payment/index.ts
index 017f3a1fe..02cb6d90e 100644
--- a/packages/admin-sdk/src/_private/payment/index.ts
+++ b/packages/admin-sdk/src/_private/payment/index.ts
@@ -93,7 +93,9 @@ export const addPaymentIframe = async (
     shopUrl = options.shopUrl || '';
     shopPlan = options.shopPlan || '';
   }
-  const link = `${baseUrl}/payment?service-name=${name}&service-version=${version}&shop-url=${shopUrl}&sw-version=${options.swVersion}&sw-user-language=${options.swUserLanguage}&shop-plan=${shopPlan}`;
+
+  const shopId = await context.getShopId();
+  const link = `${baseUrl}/payment?service-name=${name}&service-version=${version}&shop-url=${shopUrl}&sw-version=${options.swVersion}&sw-user-language=${options.swUserLanguage}&shop-plan=${shopPlan}&shop-id=${shopId ?? ''}`;
   const iframeEl = document.createElement('iframe');
   iframeEl.width = '100%';
   iframeEl.height = '100%';