diff --git a/registrasion/exceptions.py b/registrasion/exceptions.py
new file mode 100644
index 0000000000000000000000000000000000000000..ac6624d9aab7b65e17db73eceda69e44c87550f6
--- /dev/null
+++ b/registrasion/exceptions.py
@@ -0,0 +1,4 @@
+from django.core.exceptions import ValidationError
+
+class CartValidationError(ValidationError):
+    pass