diff --git a/lib/yoomoney/models/payment_create_params.rb b/lib/yoomoney/models/payment_create_params.rb
index f709572..81c1407 100644
--- a/lib/yoomoney/models/payment_create_params.rb
+++ b/lib/yoomoney/models/payment_create_params.rb
@@ -181,17 +181,25 @@ class PaymentCreateParams < Yoomoney::Internal::Type::BaseModel
       module Confirmation
         extend Yoomoney::Internal::Type::Union
 
-        variant -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataRedirect }
+        discriminator :type
 
-        variant -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataExternal }
+        variant :redirect, -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataRedirect }
 
-        variant -> { Yoomoney::ConfirmationData }
+        variant :external, -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataExternal }
 
-        variant -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataEmbedded }
+        variant :qr, -> { Yoomoney::ConfirmationData }
 
-        variant -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataMobileApplication }
+        variant :embedded, -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataEmbedded }
+
+        variant :mobile_application, -> { Yoomoney::PaymentCreateParams::Confirmation::ConfirmationDataMobileApplication }
 
         class ConfirmationDataRedirect < Yoomoney::Models::ConfirmationData
+          # @!attribute type
+          #   Код сценария подтверждения.
+          #
+          #   @return [Symbol, :redirect]
+          required :type, const: :redirect
+
           # @!attribute return_url
           #   URL, на который необходимо перенаправить пользователя после оплаты.
           #
@@ -204,43 +212,73 @@ class ConfirmationDataRedirect < Yoomoney::Models::ConfirmationData
           #   @return [Boolean, nil]
           optional :enforce, Yoomoney::Internal::Type::Boolean
 
-          # @!method initialize(return_url:, enforce: nil)
+          # @!method initialize(return_url:, enforce: nil, locale: nil, type: :redirect)
           #   @param return_url [String] URL, на который необходимо перенаправить пользователя после оплаты.
           #
           #   @param enforce [Boolean] Требование пройти аутентификацию при оплате банковской картой по 3-D Secure.
+          #
+          #   @param locale [Symbol, Yoomoney::Models::Locale] Язык интерфейса, писем и смс.
+          #
+          #   @param type [Symbol, :redirect] Код сценария подтверждения.
         end
 
         class ConfirmationDataExternal < Yoomoney::Models::ConfirmationData
+          # @!attribute type
+          #   Код сценария подтверждения.
+          #
+          #   @return [Symbol, :external]
+          required :type, const: :external
+
           # @!attribute locale
           #   Язык интерфейса.
           #
           #   @return [Symbol, Yoomoney::Models::Locale, nil]
           optional :locale, enum: -> { Yoomoney::Locale }
 
-          # @!method initialize(locale: nil)
+          # @!method initialize(locale: nil, type: :external)
           #   @param locale [Symbol, Yoomoney::Models::Locale] Язык интерфейса.
+          #
+          #   @param type [Symbol, :external] Код сценария подтверждения.
         end
 
         class ConfirmationDataEmbedded < Yoomoney::Models::ConfirmationData
+          # @!attribute type
+          #   Код сценария подтверждения.
+          #
+          #   @return [Symbol, :embedded]
+          required :type, const: :embedded
+
           # @!attribute locale
           #   Язык интерфейса.
           #
           #   @return [Symbol, Yoomoney::Models::Locale, nil]
           optional :locale, enum: -> { Yoomoney::Locale }
 
-          # @!method initialize(locale: nil)
+          # @!method initialize(locale: nil, type: :embedded)
           #   @param locale [Symbol, Yoomoney::Models::Locale] Язык интерфейса.
+          #
+          #   @param type [Symbol, :embedded] Код сценария подтверждения.
         end
 
         class ConfirmationDataMobileApplication < Yoomoney::Models::ConfirmationData
+          # @!attribute type
+          #   Код сценария подтверждения.
+          #
+          #   @return [Symbol, :mobile_application]
+          required :type, const: :mobile_application
+
           # @!attribute return_url
           #   URL, на который необходимо перенаправить пользователя после оплаты.
           #
           #   @return [String]
           required :return_url, String
 
-          # @!method initialize(return_url:)
+          # @!method initialize(return_url:, locale: nil, type: :mobile_application)
           #   @param return_url [String] URL, на который необходимо перенаправить пользователя после оплаты.
+          #
+          #   @param locale [Symbol, Yoomoney::Models::Locale] Язык интерфейса, писем и смс.
+          #
+          #   @param type [Symbol, :mobile_application] Код сценария подтверждения.
         end
 
         # @!method self.variants
diff --git a/rbi/yoomoney/models/payment_create_params.rbi b/rbi/yoomoney/models/payment_create_params.rbi
index 5e17b85..14391c1 100644
--- a/rbi/yoomoney/models/payment_create_params.rbi
+++ b/rbi/yoomoney/models/payment_create_params.rbi
@@ -407,6 +407,17 @@ module Yoomoney
               )
             end
 
+          # Код сценария подтверждения.
+          sig { returns(Symbol) }
+          attr_accessor :type
+
+          # Язык интерфейса, писем и смс.
+          sig { returns(T.nilable(Yoomoney::Locale::OrSymbol)) }
+          attr_reader :locale
+
+          sig { params(locale: Yoomoney::Locale::OrSymbol).void }
+          attr_writer :locale
+
           # URL, на который необходимо перенаправить пользователя после оплаты.
           sig { returns(String) }
           attr_accessor :return_url
@@ -419,19 +430,35 @@ module Yoomoney
           attr_writer :enforce
 
           sig do
-            params(return_url: String, enforce: T::Boolean).returns(
-              T.attached_class
-            )
+            params(
+              return_url: String,
+              enforce: T::Boolean,
+              locale: Yoomoney::Locale::OrSymbol,
+              type: Symbol
+            ).returns(T.attached_class)
           end
           def self.new(
             # URL, на который необходимо перенаправить пользователя после оплаты.
             return_url:,
             # Требование пройти аутентификацию при оплате банковской картой по 3-D Secure.
-            enforce: nil
+            enforce: nil,
+            # Язык интерфейса, писем и смс.
+            locale: nil,
+            # Код сценария подтверждения.
+            type: :redirect
           )
           end
 
-          sig { override.returns({ return_url: String, enforce: T::Boolean }) }
+          sig do
+            override.returns(
+              {
+                return_url: String,
+                enforce: T::Boolean,
+                locale: Yoomoney::Locale::OrSymbol,
+                type: Symbol
+              }
+            )
+          end
           def to_hash
           end
         end
@@ -445,6 +472,10 @@ module Yoomoney
               )
             end
 
+          # Код сценария подтверждения.
+          sig { returns(Symbol) }
+          attr_accessor :type
+
           # Язык интерфейса.
           sig { returns(T.nilable(Yoomoney::Locale::OrSymbol)) }
           attr_reader :locale
@@ -453,15 +484,23 @@ module Yoomoney
           attr_writer :locale
 
           sig do
-            params(locale: Yoomoney::Locale::OrSymbol).returns(T.attached_class)
+            params(locale: Yoomoney::Locale::OrSymbol, type: Symbol).returns(
+              T.attached_class
+            )
           end
           def self.new(
             # Язык интерфейса.
-            locale: nil
+            locale: nil,
+            # Код сценария подтверждения.
+            type: :external
           )
           end
 
-          sig { override.returns({ locale: Yoomoney::Locale::OrSymbol }) }
+          sig do
+            override.returns(
+              { locale: Yoomoney::Locale::OrSymbol, type: Symbol }
+            )
+          end
           def to_hash
           end
         end
@@ -475,6 +514,10 @@ module Yoomoney
               )
             end
 
+          # Код сценария подтверждения.
+          sig { returns(Symbol) }
+          attr_accessor :type
+
           # Язык интерфейса.
           sig { returns(T.nilable(Yoomoney::Locale::OrSymbol)) }
           attr_reader :locale
@@ -483,15 +526,23 @@ module Yoomoney
           attr_writer :locale
 
           sig do
-            params(locale: Yoomoney::Locale::OrSymbol).returns(T.attached_class)
+            params(locale: Yoomoney::Locale::OrSymbol, type: Symbol).returns(
+              T.attached_class
+            )
           end
           def self.new(
             # Язык интерфейса.
-            locale: nil
+            locale: nil,
+            # Код сценария подтверждения.
+            type: :embedded
           )
           end
 
-          sig { override.returns({ locale: Yoomoney::Locale::OrSymbol }) }
+          sig do
+            override.returns(
+              { locale: Yoomoney::Locale::OrSymbol, type: Symbol }
+            )
+          end
           def to_hash
           end
         end
@@ -505,18 +556,47 @@ module Yoomoney
               )
             end
 
+          # Код сценария подтверждения.
+          sig { returns(Symbol) }
+          attr_accessor :type
+
+          # Язык интерфейса, писем и смс.
+          sig { returns(T.nilable(Yoomoney::Locale::OrSymbol)) }
+          attr_reader :locale
+
+          sig { params(locale: Yoomoney::Locale::OrSymbol).void }
+          attr_writer :locale
+
           # URL, на который необходимо перенаправить пользователя после оплаты.
           sig { returns(String) }
           attr_accessor :return_url
 
-          sig { params(return_url: String).returns(T.attached_class) }
+          sig do
+            params(
+              return_url: String,
+              locale: Yoomoney::Locale::OrSymbol,
+              type: Symbol
+            ).returns(T.attached_class)
+          end
           def self.new(
             # URL, на который необходимо перенаправить пользователя после оплаты.
-            return_url:
+            return_url:,
+            # Язык интерфейса, писем и смс.
+            locale: nil,
+            # Код сценария подтверждения.
+            type: :mobile_application
           )
           end
 
-          sig { override.returns({ return_url: String }) }
+          sig do
+            override.returns(
+              {
+                return_url: String,
+                locale: Yoomoney::Locale::OrSymbol,
+                type: Symbol
+              }
+            )
+          end
           def to_hash
           end
         end
diff --git a/sig/yoomoney/models/payment_create_params.rbs b/sig/yoomoney/models/payment_create_params.rbs
index 019b3fa..8ea4e79 100644
--- a/sig/yoomoney/models/payment_create_params.rbs
+++ b/sig/yoomoney/models/payment_create_params.rbs
@@ -175,9 +175,23 @@ module Yoomoney
       module Confirmation
         extend Yoomoney::Internal::Type::Union
 
-        type confirmation_data_redirect = { return_url: String, enforce: bool }
+        type confirmation_data_redirect =
+          {
+            return_url: String,
+            enforce: bool,
+            locale: Yoomoney::Models::locale,
+            type: :redirect
+          }
 
         class ConfirmationDataRedirect < Yoomoney::Models::ConfirmationData
+          def type: -> :redirect
+
+          def type=: (:redirect _) -> :redirect
+
+          def locale: -> Yoomoney::Models::locale?
+
+          def locale=: (Yoomoney::Models::locale _) -> Yoomoney::Models::locale
+
           def return_url: -> String
 
           def return_url=: (String _) -> String
@@ -186,45 +200,86 @@ module Yoomoney
 
           def enforce=: (bool _) -> bool
 
-          def initialize: (return_url: String, ?enforce: bool) -> void
+          def initialize: (
+            return_url: String,
+            ?enforce: bool,
+            ?locale: Yoomoney::Models::locale,
+            ?type: :redirect
+          ) -> void
 
-          def to_hash: -> { return_url: String, enforce: bool }
+          def to_hash: -> {
+            return_url: String,
+            enforce: bool,
+            locale: Yoomoney::Models::locale,
+            type: :redirect
+          }
         end
 
-        type confirmation_data_external = { locale: Yoomoney::Models::locale }
+        type confirmation_data_external =
+          { locale: Yoomoney::Models::locale, type: :external }
 
         class ConfirmationDataExternal < Yoomoney::Models::ConfirmationData
+          def type: -> :external
+
+          def type=: (:external _) -> :external
+
           def locale: -> Yoomoney::Models::locale?
 
           def locale=: (Yoomoney::Models::locale _) -> Yoomoney::Models::locale
 
-          def initialize: (?locale: Yoomoney::Models::locale) -> void
+          def initialize: (?locale: Yoomoney::Models::locale, ?type: :external) -> void
 
-          def to_hash: -> { locale: Yoomoney::Models::locale }
+          def to_hash: -> { locale: Yoomoney::Models::locale, type: :external }
         end
 
-        type confirmation_data_embedded = { locale: Yoomoney::Models::locale }
+        type confirmation_data_embedded =
+          { locale: Yoomoney::Models::locale, type: :embedded }
 
         class ConfirmationDataEmbedded < Yoomoney::Models::ConfirmationData
+          def type: -> :embedded
+
+          def type=: (:embedded _) -> :embedded
+
           def locale: -> Yoomoney::Models::locale?
 
           def locale=: (Yoomoney::Models::locale _) -> Yoomoney::Models::locale
 
-          def initialize: (?locale: Yoomoney::Models::locale) -> void
+          def initialize: (?locale: Yoomoney::Models::locale, ?type: :embedded) -> void
 
-          def to_hash: -> { locale: Yoomoney::Models::locale }
+          def to_hash: -> { locale: Yoomoney::Models::locale, type: :embedded }
         end
 
-        type confirmation_data_mobile_application = { return_url: String }
+        type confirmation_data_mobile_application =
+          {
+            return_url: String,
+            locale: Yoomoney::Models::locale,
+            type: :mobile_application
+          }
 
         class ConfirmationDataMobileApplication < Yoomoney::Models::ConfirmationData
+          def type: -> :mobile_application
+
+          def type=: (:mobile_application _) -> :mobile_application
+
+          def locale: -> Yoomoney::Models::locale?
+
+          def locale=: (Yoomoney::Models::locale _) -> Yoomoney::Models::locale
+
           def return_url: -> String
 
           def return_url=: (String _) -> String
 
-          def initialize: (return_url: String) -> void
+          def initialize: (
+            return_url: String,
+            ?locale: Yoomoney::Models::locale,
+            ?type: :mobile_application
+          ) -> void
 
-          def to_hash: -> { return_url: String }
+          def to_hash: -> {
+            return_url: String,
+            locale: Yoomoney::Models::locale,
+            type: :mobile_application
+          }
         end
 
         def self?.variants: -> ::Array[Yoomoney::Models::PaymentCreateParams::confirmation]
diff --git a/test/yoomoney/models/payment_create_params_test.rb b/test/yoomoney/models/payment_create_params_test.rb
new file mode 100644
index 0000000..4d5da93
--- /dev/null
+++ b/test/yoomoney/models/payment_create_params_test.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+require_relative "../test_helper"
+
+class Yoomoney::Test::PaymentCreateParamsModelTest < Minitest::Test
+  extend Minitest::Serial
+  include WebMock::API
+
+  Confirmation = Yoomoney::PaymentCreateParams::Confirmation
+
+  def before_all
+    super
+    WebMock.enable!
+  end
+
+  def teardown
+    WebMock.reset!
+    super
+  end
+
+  def after_all
+    WebMock.disable!
+    super
+  end
+
+  def test_confirmation_models_send_their_type
+    {
+      Confirmation::ConfirmationDataRedirect.new(return_url: "https://example.com", locale: :ru_RU) =>
+        {"type" => "redirect", "return_url" => "https://example.com", "locale" => "ru_RU"},
+      Confirmation::ConfirmationDataExternal.new => {"type" => "external"},
+      Confirmation::ConfirmationDataEmbedded.new(locale: :en_US) => {"type" => "embedded", "locale" => "en_US"},
+      Confirmation::ConfirmationDataMobileApplication.new(return_url: "app://return") =>
+        {"type" => "mobile_application", "return_url" => "app://return"}
+    }.each do |confirmation, expected|
+      assert_equal(expected, sent_confirmation(confirmation))
+    end
+  end
+
+  def test_confirmation_hash_picks_variant_by_type
+    confirmation = Confirmation.coerce({type: "redirect", return_url: "https://example.com"}, state: coerce_state)
+
+    assert_kind_of(Confirmation::ConfirmationDataRedirect, confirmation)
+  end
+
+  private
+
+  def sent_confirmation(confirmation)
+    body = nil
+    stub_request(:post, "http://localhost/payments").to_return_json(status: 500, body: {})
+      .with { body = JSON.parse(_1.body) }
+    client = Yoomoney::Client.new(base_url: "http://localhost", username: "u", password: "p", max_retries: 0)
+
+    assert_raises(Yoomoney::Errors::InternalServerError) do
+      client.payments.create(amount: {currency: :RUB, value: "1.00"}, idempotence_key: "key", confirmation:)
+    end
+    body.fetch("confirmation")
+  end
+
+  def coerce_state = {translate_names: false, strictness: true, exactness: {yes: 0, no: 0, maybe: 0}, branched: 0}
+end