@@ -197,6 +197,13 @@ def __init__(
         )
 
 
+class FeastOfflineStoreInvalidName(Exception):
+    def __init__(self, offline_store_class_name: str):
+        super().__init__(
+            f"Offline Store Class '{offline_store_class_name}' should end with the string `OfflineStore`.'"
+        )
+
+
 class FeastOnlineStoreInvalidName(Exception):
     def __init__(self, online_store_class_name: str):
         super().__init__(
 
@@ -20,6 +20,8 @@
 from feast.errors import (
     FeastFeatureServerTypeInvalidError,
     FeastFeatureServerTypeSetError,
+    FeastOfflineStoreInvalidName,
+    FeastOnlineStoreInvalidName,
     FeastProviderNotSetError,
 )
 from feast.importer import import_class
@@ -217,7 +219,8 @@ def _validate_online_store_config(cls, values):
             return values
 
         # Make sure that the provider configuration is set. We need it to set the defaults
-        assert "provider" in values
+        if "provider" not in values:
+            raise FeastProviderNotSetError()
 
         # Set the default type
         # This is only direct reference to a provider or online store that we should have
@@ -253,7 +256,8 @@ def _validate_offline_store_config(cls, values):
             return values
 
         # Make sure that the provider configuration is set. We need it to set the defaults
-        assert "provider" in values
+        if "provider" not in values:
+            raise FeastProviderNotSetError()
 
         # Set the default type
         if "type" not in values["offline_store"]:
@@ -375,8 +379,8 @@ def get_data_source_class_from_type(data_source_type: str):
 def get_online_config_from_type(online_store_type: str):
     if online_store_type in ONLINE_STORE_CLASS_FOR_TYPE:
         online_store_type = ONLINE_STORE_CLASS_FOR_TYPE[online_store_type]
-    else:
-        assert online_store_type.endswith("OnlineStore")
+    elif not online_store_type.endswith("OnlineStore"):
+        raise FeastOnlineStoreInvalidName(online_store_type)
     module_name, online_store_class_type = online_store_type.rsplit(".", 1)
     config_class_name = f"{online_store_class_type}Config"
 
@@ -386,8 +390,8 @@ def get_online_config_from_type(online_store_type: str):
 def get_offline_config_from_type(offline_store_type: str):
     if offline_store_type in OFFLINE_STORE_CLASS_FOR_TYPE:
         offline_store_type = OFFLINE_STORE_CLASS_FOR_TYPE[offline_store_type]
-    else:
-        assert offline_store_type.endswith("OfflineStore")
+    elif not offline_store_type.endswith("OfflineStore"):
+        raise FeastOfflineStoreInvalidName(offline_store_type)
     module_name, offline_store_class_type = offline_store_type.rsplit(".", 1)
     config_class_name = f"{offline_store_class_type}Config"