diff --git a/apps/web/components/apps/App.tsx b/apps/web/components/apps/App.tsx
index 2d50a62002..e2ec06701e 100644
--- a/apps/web/components/apps/App.tsx
+++ b/apps/web/components/apps/App.tsx
@@ -42,7 +42,7 @@ const Component = ({
 
   const mutation = useAddAppMutation(null, {
     onSuccess: (data) => {
-      if (data.setupPending) return;
+      if (data?.setupPending) return;
       showToast(t("app_successfully_installed"), "success");
     },
     onError: (error) => {
diff --git a/packages/app-store/_components/OmniInstallAppButton.tsx b/packages/app-store/_components/OmniInstallAppButton.tsx
index 4e9a4e7fb9..3ed9f2243f 100644
--- a/packages/app-store/_components/OmniInstallAppButton.tsx
+++ b/packages/app-store/_components/OmniInstallAppButton.tsx
@@ -21,7 +21,7 @@ export default function OmniInstallAppButton({ appId, className }: { appId: stri
       //TODO: viewer.appById might be replaced with viewer.apps so that a single query needs to be invalidated.
       utils.viewer.appById.invalidate({ appId });
       utils.viewer.apps.invalidate({ extendsFeature: "EventType" });
-      if (data.setupPending) return;
+      if (data?.setupPending) return;
       showToast(t("app_successfully_installed"), "success");
     },
     onError: (error) => {
diff --git a/packages/app-store/_utils/useAddAppMutation.ts b/packages/app-store/_utils/useAddAppMutation.ts
index d2241dbac0..e7a5c52027 100644
--- a/packages/app-store/_utils/useAddAppMutation.ts
+++ b/packages/app-store/_utils/useAddAppMutation.ts
@@ -18,13 +18,14 @@ type CustomUseMutationOptions =
   | Omit<UseMutationOptions<unknown, unknown, unknown, unknown>, "mutationKey" | "mutationFn" | "onSuccess">
   | undefined;
 
+type AddAppMutationData = { setupPending: boolean } | void;
 type UseAddAppMutationOptions = CustomUseMutationOptions & {
-  onSuccess: (data: { setupPending: boolean }) => void;
+  onSuccess: (data: AddAppMutationData) => void;
 };
 
 function useAddAppMutation(_type: App["type"] | null, options?: UseAddAppMutationOptions) {
   const mutation = useMutation<
-    { setupPending: boolean },
+    AddAppMutationData,
     Error,
     { type?: App["type"]; variant?: string; slug?: string; isOmniInstall?: boolean } | ""
   >(async (variables) => {
@@ -62,6 +63,7 @@ function useAddAppMutation(_type: App["type"] | null, options?: UseAddAppMutatio
 
     if (!isOmniInstall) {
       gotoUrl(json.url, json.newTab);
+      return;
     }
 
     // Skip redirection only if it is an OmniInstall and redirect URL isn't of some other origin
@@ -71,6 +73,7 @@ function useAddAppMutation(_type: App["type"] | null, options?: UseAddAppMutatio
     if (externalUrl) {
       // TODO: For Omni installation to authenticate and come back to the page where installation was initiated, some changes need to be done in all apps' add callbacks
       gotoUrl(json.url, json.newTab);
+      return;
     }
 
     return { setupPending: externalUrl || json.url.endsWith("/setup") };
diff --git a/packages/ui/v2/core/apps/AppCard.tsx b/packages/ui/v2/core/apps/AppCard.tsx
index 3fc81380df..c9f842ff8a 100644
--- a/packages/ui/v2/core/apps/AppCard.tsx
+++ b/packages/ui/v2/core/apps/AppCard.tsx
@@ -23,7 +23,7 @@ export default function AppCard({ app, credentials, searchText }: AppCardProps)
     onSuccess: (data) => {
       // Refresh SSR page content without actual reload
       router.replace(router.asPath);
-      if (data.setupPending) return;
+      if (data?.setupPending) return;
       showToast(t("app_successfully_installed"), "success");
     },
     onError: (error) => {