diff --git a/ecommerce_integrations/shopify/customer.py b/ecommerce_integrations/shopify/customer.py
index 3a0ee952f..91f6bc223 100644
--- a/ecommerce_integrations/shopify/customer.py
+++ b/ecommerce_integrations/shopify/customer.py
@@ -25,6 +25,9 @@ def sync_customer(self, customer: dict[str, Any]) -> None:
 		if len(customer_name.strip()) == 0:
 			customer_name = customer.get("email")
 
+		if not customer_name:
+			customer_name = cstr(customer.get("id"))
+
 		customer_group = self.setting.customer_group
 		super().sync_customer(customer_name, customer_group)