Commit 2bcb798

@@ -36,10 +36,7 @@ module Scim
           if value.is_a?(Hash)
             attribute_for(name)&.assign_attributes(value)
           else
-            attribute = attribute_for(name)
-            raise Scim::Kit::UnknownAttributeError, name unless attribute
-
-            attribute._value = value
+            attribute_for(name)._value = value
           end
         end
 
@@ -52,7 +49,7 @@ module Scim
         private
 
         def attribute_for(name)
-          dynamic_attributes[name.to_s.underscore]
+          dynamic_attributes[name.to_s.underscore] || UnknownAttribute.new(name)
         end
 
         def create_module_for(type)

@@ -78,7 +78,7 @@ module Scim
           if _type.multi_valued
             each_value do |hash|
               hash.each do |key, value|
-                attribute = attribute_for(key) || UnknownAttribute.new(key)
+                attribute = attribute_for(key)
                 attribute._assign(value)
                 errors.copy!(attribute.errors) unless attribute.valid?
               end

@@ -16,6 +16,10 @@ module Scim
           valid?
         end
 
+        def _value=(*args)
+          raise Scim::Kit::UnknownAttributeError, name
+        end
+
         def unknown
           errors.add(name, I18n.t('errors.messages.invalid'))
         end