diff --git a/lib/external_credential/twitter.rb b/lib/external_credential/twitter.rb
index 9adda00e0..d4f63dd9b 100644
--- a/lib/external_credential/twitter.rb
+++ b/lib/external_credential/twitter.rb
@@ -160,9 +160,9 @@ class ExternalCredential::Twitter
     rescue
       begin
         webhooks = client.webhooks
-        raise "Unable to get list of webooks. You use the wrong 'Dev environment label', only #{webhooks.inspect} available."
-      rescue => e
-        raise "Unable to get list of webooks. Maybe you do not have an Twitter developer approval right now or you use the wrong 'Dev environment label': #{e.message}"
+        raise "Dev Environment Label invalid. Please use an existing one #{webhooks[:environments].map { |e| e[:environment_name] }}, or create a new one."
+      rescue Twitter::Error => e
+        raise "#{e.message} Are you sure you created a development environment on developer.twitter.com?"
       end
     end
     webhook_id = nil
diff --git a/spec/requests/external_credentials_spec.rb b/spec/requests/external_credentials_spec.rb
index 1d6756995..cae98a3e7 100644
--- a/spec/requests/external_credentials_spec.rb
+++ b/spec/requests/external_credentials_spec.rb
@@ -248,7 +248,7 @@ RSpec.describe 'External Credentials', type: :request do
           include_examples 'for failure cases' do
             let(:status) { :ok }
             let(:error_message) { <<~ERR.chomp }
-              Unable to get list of webooks. Maybe you do not have an Twitter developer approval right now or you use the wrong 'Dev environment label': Forbidden.
+              Forbidden. Are you sure you created a development environment on developer.twitter.com?
             ERR
           end
         end
@@ -260,7 +260,7 @@ RSpec.describe 'External Credentials', type: :request do
           include_examples 'for failure cases' do
             let(:status) { :ok }
             let(:error_message) { <<~ERR.chomp }
-              Unable to get list of webooks. Maybe you do not have an Twitter developer approval right now or you use the wrong 'Dev environment label': Unable to get list of webooks. You use the wrong 'Dev environment label', only {:environments=>[{:environment_name=>\"zammad\", :webhooks=>[]}]} available.
+              Dev Environment Label invalid. Please use an existing one ["zammad"], or create a new one.
             ERR
           end
         end