diff --git a/lib/active_campaign_wrapper.rb b/lib/active_campaign_wrapper.rb
index 1816c55..760cc6c 100644
--- a/lib/active_campaign_wrapper.rb
+++ b/lib/active_campaign_wrapper.rb
@@ -17,5 +17,11 @@ def config
 
   class Error < StandardError; end
 
-  class AuthorizationError < StandardError; end
+  class Forbidden < StandardError; end
+
+  class UnprocessableEntity < StandardError; end
+
+  class NotFound < StandardError; end
+
+  class TooManyRequests < StandardError; end
 end
diff --git a/lib/active_campaign_wrapper/helpers.rb b/lib/active_campaign_wrapper/helpers.rb
index 6fcc173..9e2537c 100644
--- a/lib/active_campaign_wrapper/helpers.rb
+++ b/lib/active_campaign_wrapper/helpers.rb
@@ -7,8 +7,11 @@ module Helpers
     module_function
 
     def normalize_response(response)
-      raise ActiveCampaignWrapper::AuthorizationError, response.message if response.unauthorized?
-      raise ActiveCampaignWrapper::Error, response.message unless response.success?
+      raise ActiveCampaignWrapper::Forbidden, response['message'] if response.forbidden?
+      raise ActiveCampaignWrapper::NotFound, response['message'] if response.not_found?
+      raise ActiveCampaignWrapper::UnprocessableEntity, response['errors']&.join(', ') || response['error'] if response.unprocessable_entity?
+      raise ActiveCampaignWrapper::TooManyRequests, response['message'] if response.too_many_requests?
+      raise ActiveCampaignWrapper::Error, response['message'] unless response.success?
 
       if response&.body.present?
         transform_keys(response, [:underscore])
diff --git a/lib/active_campaign_wrapper/version.rb b/lib/active_campaign_wrapper/version.rb
index ccfe722..533e988 100644
--- a/lib/active_campaign_wrapper/version.rb
+++ b/lib/active_campaign_wrapper/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module ActiveCampaignWrapper
-  VERSION = '0.1.1'
+  VERSION = '0.3.0'
 end