diff --git a/app/controllers/repp/v1/domains_controller.rb b/app/controllers/repp/v1/domains_controller.rb
index 99d8c44e5..56de83661 100644
--- a/app/controllers/repp/v1/domains_controller.rb
+++ b/app/controllers/repp/v1/domains_controller.rb
@@ -28,6 +28,8 @@ module Repp
       param :domain, Hash, required: true, desc: 'Parameters for new domain' do
         param :name, String, required: true, desc: 'Domain name to be registered'
         param :registrant, String, required: true, desc: 'Registrant contact code'
+        param :reserved_pw, String, required: false, desc: 'Reserved password for domain'
+        param :transfer_code, String, required: false, desc: 'Desired transfer code for domain'
         param :period, Integer, required: true, desc: 'Registration period in months or years'
         param :period_unit, String, required: true, desc: 'Period type (month m) or (year y)'
         param :nameservers_attributes, Array, required: false, desc: 'Domain nameservers' do
@@ -71,7 +73,7 @@ module Repp
           param :verified, [true, false], required: false,
                                           desc: 'Registrant change is already verified'
         end
-        param :auth_info, String, required: false, desc: 'New authorization code'
+        param :transfer_code, String, required: false, desc: 'New authorization code'
       end
       def update
         action = Actions::DomainUpdate.new(@domain, params[:domain], false)
@@ -215,10 +217,10 @@ module Repp
 
       def domain_create_params
         params.require(:domain).permit(:name, :registrant, :period, :period_unit, :registrar,
+                                       :transfer_code, :reserved_pw,
                                        dnskeys_attributes: [%i[flags alg protocol public_key]],
                                        nameservers_attributes: [[:hostname, ipv4: [], ipv6: []]],
-                                       admin_contacts: [],
-                                       tech_contacts: [])
+                                       admin_contacts: [], tech_contacts: [])
       end
     end
   end
diff --git a/app/interactions/actions/domain_update.rb b/app/interactions/actions/domain_update.rb
index 0df036654..7da22e539 100644
--- a/app/interactions/actions/domain_update.rb
+++ b/app/interactions/actions/domain_update.rb
@@ -35,7 +35,7 @@ module Actions
     end
 
     def validate_domain_integrity
-      domain.auth_info = params[:auth_info] if params[:auth_info]
+      domain.auth_info = params[:transfer_code] if params[:transfer_code]
 
       return unless domain.discarded?
 
diff --git a/lib/deserializers/xml/domain_update.rb b/lib/deserializers/xml/domain_update.rb
index 86250a368..eb1b22296 100644
--- a/lib/deserializers/xml/domain_update.rb
+++ b/lib/deserializers/xml/domain_update.rb
@@ -15,7 +15,7 @@ module Deserializers
 
       def call
         obj = { domain: frame.css('name')&.text, registrant: registrant, contacts: contacts,
-                auth_info: if_present('authInfo > pw'), nameservers: nameservers,
+                transfer_code: if_present('authInfo > pw'), nameservers: nameservers,
                 registrar_id: registrar, statuses: statuses, dns_keys: dns_keys,
                 reserved_pw: if_present('reserved > pw'), legal_document: @legal_document }
 
diff --git a/lib/serializers/repp/domain.rb b/lib/serializers/repp/domain.rb
index 5821e1568..0f81b6417 100644
--- a/lib/serializers/repp/domain.rb
+++ b/lib/serializers/repp/domain.rb
@@ -12,7 +12,7 @@ module Serializers
           name: obj.name, registrant: obj.registrant.code, created_at: obj.created_at,
           updated_at: obj.updated_at, expire_time: obj.expire_time, outzone_at: obj.outzone_at,
           delete_date: obj.delete_date, force_delete_date: obj.force_delete_date,
-          authorization_code: obj.auth_info, contacts: contacts, nameservers: nameservers,
+          transfer_code: obj.auth_info, contacts: contacts, nameservers: nameservers,
           dnssec_keys: dnssec_keys, statuses: obj.statuses
         }
 
diff --git a/test/integration/repp/v1/domains/create_test.rb b/test/integration/repp/v1/domains/create_test.rb
index bcce43e58..7907e709e 100644
--- a/test/integration/repp/v1/domains/create_test.rb
+++ b/test/integration/repp/v1/domains/create_test.rb
@@ -110,4 +110,28 @@ class ReppV1DomainsCreateTest < ActionDispatch::IntegrationTest
     assert_equal tech_contact, domain.tech_domain_contacts.first.contact
     assert_equal admin_contact, domain.admin_domain_contacts.first.contact
   end
+
+  def test_creates_new_domain_with_desired_transfer_code
+    @auth_headers['Content-Type'] = 'application/json'
+    contact = contacts(:john)
+
+    payload = {
+      domain: {
+        name: 'domeener.test',
+        registrant: contact.code,
+        transfer_code: 'ABADIATS',
+        period: 1,
+        period_unit: 'y'
+      }
+    }
+
+    post "/repp/v1/domains", headers: @auth_headers, params: payload.to_json
+    json = JSON.parse(response.body, symbolize_names: true)
+    assert_response :ok
+    assert_equal 1000, json[:code]
+    assert_equal 'Command completed successfully', json[:message]
+
+    assert @user.registrar.domains.find_by(name: 'domeener.test').present?
+    assert_equal 'ABADIATS', @user.registrar.domains.find_by(name: 'domeener.test').transfer_code
+  end
 end