diff --git a/model/cubes/defaults.py b/model/cubes/defaults.py
new file mode 100644
index 0000000..e411c18
--- /dev/null
+++ b/model/cubes/defaults.py
@@ -0,0 +1,10 @@
+import os
+from cube import context_func
+
+@context_func
+def get_scheduled_refresh():
+  name = 'CUSTOM_ENV_PREAGGS_ENABLE'
+  if name in os.environ:
+    return str(str(os.environ[name]).lower() == 'true').lower()
+  return 'false'
+
diff --git a/model/cubes/line_items.yml b/model/cubes/line_items.yml.jinja
similarity index 88%
rename from model/cubes/line_items.yml
rename to model/cubes/line_items.yml.jinja
index 8f66548..ab4eb2d 100644
--- a/model/cubes/line_items.yml
+++ b/model/cubes/line_items.yml.jinja
@@ -1,3 +1,5 @@
+{% set scheduled_refresh = get_scheduled_refresh() %}
+
 cubes:
   - name: line_items
     sql_table: ECOM.LINE_ITEMS
@@ -32,7 +34,7 @@ cubes:
         
     pre_aggregations:
       - name: line_items_summary
-        scheduled_refresh: false
+        scheduled_refresh: {{ scheduled_refresh }}
         measures:
           - count
           - total_amount