diff --git a/camisatoshi_wordpress_reports/constants.py b/camisatoshi_wordpress_reports/constants.py
index e622efe..f6873fa 100644
--- a/camisatoshi_wordpress_reports/constants.py
+++ b/camisatoshi_wordpress_reports/constants.py
@@ -9,3 +9,4 @@ order_keys.line_item_keys.sku = "sku"
 
 custom_meta_data_keys = SimpleNamespace()
 custom_meta_data_keys.is_settled_with_um = "is_settled_with_um"
+custom_meta_data_keys.sats_received = "sats_received"
\ No newline at end of file
diff --git a/camisatoshi_wordpress_reports/controllers.py b/camisatoshi_wordpress_reports/controllers.py
index e248acd..d16b7d8 100644
--- a/camisatoshi_wordpress_reports/controllers.py
+++ b/camisatoshi_wordpress_reports/controllers.py
@@ -7,6 +7,7 @@ from dotenv import dotenv_values
 from woocommerce import API
 
 from camisatoshi_wordpress_reports.order import Order
+from camisatoshi_wordpress_reports.constants import custom_meta_data_keys
 
 API_CONFIG = dotenv_values(
     dotenv_path=Path.home() / Path(".camisatoshi-wordpress-reports/.env")
@@ -109,7 +110,7 @@ def find_orders_without_sats_received(orders: List[Order]) -> List[Order]:
     orders_without_sats_received = []
 
     for order in orders:
-        if not order.contains_meta_data_entry("sats_received"):
+        if not order.contains_meta_data_entry(custom_meta_data_keys.sats_received):
             orders_without_sats_received.append(order)
             continue