diff --git a/backend/google_contacts.py b/backend/google_contacts.py
index 15102e6..43671ae 100644
--- a/backend/google_contacts.py
+++ b/backend/google_contacts.py
@@ -59,6 +59,10 @@ async def import_contacts_from_google(
         Number of contacts imported
     """
     from uuid import UUID
+    import logging
+    
+    logger = logging.getLogger(__name__)
+    logger.info(f"Starting Google contacts import - event_id: {event_id}, user_id: {added_by_user_id}, owner: {owner_email}")
     
     # event_id and added_by_user_id are required
     if not event_id:
@@ -85,6 +89,8 @@ async def import_contacts_from_google(
     async with httpx.AsyncClient() as client:
         response = await client.get(url, headers=headers, params=params)
         
+        logger.info(f"Google API response status: {response.status_code}")
+        
         if response.status_code != 200:
             # Try to parse error details
             try:
@@ -108,6 +114,8 @@ async def import_contacts_from_google(
         data = response.json()
         connections = data.get("connections", [])
         
+        logger.info(f"Received {len(connections)} connections from Google")
+        
         for connection in connections:
             # Extract name
             names = connection.get("names", [])
@@ -171,5 +179,7 @@ async def import_contacts_from_google(
                 imported_count += 1
         
         db.commit()
+        
+        logger.info(f"Completed Google contacts import - imported {imported_count} new contacts")
     
     return imported_count
diff --git a/backend/main.py b/backend/main.py
index 00c0199..a1f3020 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -976,6 +976,8 @@ async def google_callback(
     Handle Google OAuth callback.
     Exchanges authorization code for access token and imports contacts.
     """
+    logger.info(f"Google OAuth callback received - state: {state}, has_code: {bool(code)}, error: {error}")
+    
     if error:
         frontend_url = os.getenv("FRONTEND_URL", "http://localhost:5173")
         error_url = f"{frontend_url}?error={quote(error)}"
@@ -1053,6 +1055,8 @@ async def google_callback(
                     event_id=event_id
                 )
                 
+                logger.info(f"Successfully imported {imported_count} contacts from Google for event {event_id}")
+                
                 # Success - return HTML that sets sessionStorage with import details and redirects
                 frontend_url = os.getenv("FRONTEND_URL", "http://localhost:5173")
                 
@@ -1086,10 +1090,12 @@ async def google_callback(
                 return HTMLResponse(content=html_content)
                 
             except Exception as import_error:
+                logger.error(f"Failed to import contacts from Google: {str(import_error)}", exc_info=True)
                 frontend_url = os.getenv("FRONTEND_URL", "http://localhost:5173")
                 return RedirectResponse(url=f"{frontend_url}?error={quote(f'Import failed: {str(import_error)}')}")
             
     except Exception as e:
+        logger.error(f"OAuth callback error: {str(e)}", exc_info=True)
         frontend_url = os.getenv("FRONTEND_URL", "http://localhost:5173")
         return RedirectResponse(url=f"{frontend_url}?error={quote('OAuth error')}")