Update salesforce_conn.py

salesforce_conn.py

@@ -1,18 +1,19 @@
 from simple_salesforce import Salesforce, SalesforceAuthenticationFailed
 
 def connect_to_salesforce():
-    """
-    Connects to the Salesforce Developer Edition using provided credentials.
-    Returns the authenticated Salesforce object, or None if connection fails.
-    """
     try:
         sf = Salesforce(
             username="greenenergy@vedavathi.com",
             password="Vedavathi@04",
-            security_token="jqe4His8AcuFJucZz5NBHfGU"
+            security_token="jqe4His8AcuFJucZz5NBHfGU",
+            domain="login"  # "login" for production & developer edition; use "test" for sandbox
         )
         return sf
     except SalesforceAuthenticationFailed as e:
         print("Salesforce authentication failed:", e)
         return None
+    except Exception as e:
+        print("Unexpected error connecting to Salesforce:", e)
+        return None
+