diff --git a/apps/drive-integration/src/hooks/useWorkflowAgent.ts b/apps/drive-integration/src/hooks/useWorkflowAgent.ts
index bdab38792a..27f82b15ca 100644
--- a/apps/drive-integration/src/hooks/useWorkflowAgent.ts
+++ b/apps/drive-integration/src/hooks/useWorkflowAgent.ts
@@ -131,6 +131,10 @@ const getBackendWorkflowFailureReason = (runData: AgentRunData): WorkflowFailure
     return WorkflowFailureReason.AI_SERVICE_UNAVAILABLE;
   }
 
+  if (workflowFailure.code === WorkflowFailureReason.APP_NOT_INSTALLED) {
+    return WorkflowFailureReason.APP_NOT_INSTALLED;
+  }
+
   if (workflowFailure.code === WorkflowFailureReason.GENERIC) {
     return WorkflowFailureReason.GENERIC;
   }
@@ -154,6 +158,10 @@ const getWorkflowFailureMessage = (
     return ERROR_MESSAGES.AI_SERVICE_UNAVAILABLE;
   }
 
+  if (failureReason === WorkflowFailureReason.APP_NOT_INSTALLED) {
+    return ERROR_MESSAGES.APP_NOT_INSTALLED;
+  }
+
   return getRunErrorMessage(runData);
 };
 
@@ -265,7 +273,7 @@ export const useWorkflowAgent = ({
       setIsAnalyzing(true);
 
       const spaceId = sdk.ids.space;
-      const environmentId = sdk.ids.environment;
+      const environmentId = sdk.ids.environmentAlias ?? sdk.ids.environment;
       const threadId = [crypto.randomUUID(), WORKFLOW_AGENT_ID].join('-');
 
       const payload: AgentGeneratePayload = {
@@ -308,7 +316,7 @@ export const useWorkflowAgent = ({
       setIsAnalyzing(true);
 
       const spaceId = sdk.ids.space;
-      const environmentId = sdk.ids.environment;
+      const environmentId = sdk.ids.environmentAlias ?? sdk.ids.environment;
 
       try {
         await resumeWorkflowRun(sdk, spaceId, environmentId, runId, resumePayload);
diff --git a/apps/drive-integration/src/locations/Page/components/mainpage/ModalOrchestrator.tsx b/apps/drive-integration/src/locations/Page/components/mainpage/ModalOrchestrator.tsx
index b343e441c0..31e6431bee 100644
--- a/apps/drive-integration/src/locations/Page/components/mainpage/ModalOrchestrator.tsx
+++ b/apps/drive-integration/src/locations/Page/components/mainpage/ModalOrchestrator.tsx
@@ -187,6 +187,18 @@ export const ModalOrchestrator = forwardRef<ModalOrchestratorHandle, ModalOrches
         return;
       }
 
+      if (
+        error instanceof WorkflowRunError &&
+        error.reason === WorkflowFailureReason.APP_NOT_INSTALLED
+      ) {
+        setPreviewErrorState({
+          reason: WorkflowFailureReason.APP_NOT_INSTALLED,
+          title: 'App not installed in this environment',
+          message: ERROR_MESSAGES.APP_NOT_INSTALLED,
+        });
+        return;
+      }
+
       setPreviewErrorState({
         reason: WorkflowFailureReason.GENERIC,
         title: 'Unable to generate preview',
diff --git a/apps/drive-integration/src/types/workflow.ts b/apps/drive-integration/src/types/workflow.ts
index 892b391913..58601281c5 100644
--- a/apps/drive-integration/src/types/workflow.ts
+++ b/apps/drive-integration/src/types/workflow.ts
@@ -15,6 +15,7 @@ export enum WorkflowFailureReason {
   GOOGLE_DRIVE_AUTH_EXPIRED = 'google-drive-auth-expired',
   GOOGLE_DOCS_NOT_FOUND = 'google-docs-not-found',
   AI_SERVICE_UNAVAILABLE = 'ai-service-unavailable',
+  APP_NOT_INSTALLED = 'app-not-installed',
 }
 
 export interface WorkflowFailure {
diff --git a/apps/drive-integration/src/utils/constants/messages.ts b/apps/drive-integration/src/utils/constants/messages.ts
index 62d615584f..73b02a57fe 100644
--- a/apps/drive-integration/src/utils/constants/messages.ts
+++ b/apps/drive-integration/src/utils/constants/messages.ts
@@ -12,6 +12,8 @@ export const ERROR_MESSAGES = {
     'Google Doc not found. Make sure the document exists and your Google account has access to it.',
   AI_SERVICE_UNAVAILABLE:
     'The AI service is temporarily unavailable. Please try again in a few minutes.',
+  APP_NOT_INSTALLED:
+    'The Drive Integration app is not installed in this environment. Install it via Apps > Manage apps and try again.',
 } as const;
 
 export const SUCCESS_MESSAGES = {