diff --git a/config/settings.yml b/config/settings.yml
index f90840cc4c4..916e6b302bc 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -1288,6 +1288,8 @@ vanotify:
         form21_674_action_needed_email: form21_674_action_needed_email_template_id
         form21_0966_confirmation_email: form21_0966_confirmation_email_template_id
         form21_0966_error_email: form21_0966_error_email_template_id
+        form21_0966_received_email: form21_0966_received_email_template_id
+        form21_0966_itf_api_received_email: form21_0966_itf_api_received_email_template_id
         form21_0972_confirmation_email: form21_0972_confirmation_email_template_id
         form21_0972_error_email: form21_0972_error_email_template_id
         form21_0972_received_email: form21_0972_received_email_template_id
diff --git a/config/settings/production.yml b/config/settings/production.yml
index 94c004502e0..6546f69e0a5 100644
--- a/config/settings/production.yml
+++ b/config/settings/production.yml
@@ -1,2 +1,44 @@
+betamocks:
+  recording: false
+central_mail:
+  upload:
+    enabled: true
+check_in:
+  authentication:
+    retry_attempt_expiry: 604800
+  chip_api_v2:
+    mock: false
+    timeout: 30
+  lorota_v2:
+    mock: false
+  travel_reimbursement_api:
+    redis_token_expiry: 3540
+clamav:
+  mock: false
+coverband:
+  github_organization: department-of-veterans-affairs
+decision_review:
+  mock: false
+  pdf_validation:
+    enabled: true
+dogstatsd:
+  enabled: true
+evss:
+  s3:
+    uploads_enabled: true
+expiry_scanner:
+  slack:
+    channel_id: C24RH0W11
+flipper:
+  github_organization: department-of-veterans-affairs
+  mute_logs: false
+form_10_10cg:
+  poa:
+    s3:
+      enabled: true
+form526_backup:
+  submission_method: single
+google_analytics_cvu:
+  type: service_account
 hca:
   ca: []
diff --git a/modules/simple_forms_api/app/controllers/simple_forms_api/v1/uploads_controller.rb b/modules/simple_forms_api/app/controllers/simple_forms_api/v1/uploads_controller.rb
index 3f2b1194f31..953021afff3 100644
--- a/modules/simple_forms_api/app/controllers/simple_forms_api/v1/uploads_controller.rb
+++ b/modules/simple_forms_api/app/controllers/simple_forms_api/v1/uploads_controller.rb
@@ -91,13 +91,13 @@ def handle_210966_authenticated
         form.track_user_identity(confirmation_number)
 
         if confirmation_number && Flipper.enabled?(:simple_forms_email_confirmations)
-          send_confirmation_email(parsed_form_data, get_form_id, confirmation_number)
+          send_intent_received_email(parsed_form_data, confirmation_number, expiration_date)
         end
 
         json_for210966(confirmation_number, expiration_date, existing_intents)
-      rescue Common::Exceptions::UnprocessableEntity, Net::ReadTimeout => e
+      rescue Common::Exceptions::UnprocessableEntity, Exceptions::BenefitsClaimsApiDownError => e
         # Common::Exceptions::UnprocessableEntity: There is an authentication issue with the Intent to File API
-        # Faraday::TimeoutError: The Intent to File API is down or timed out
+        # Exceptions::BenefitsClaimsApiDownError: The Intent to File API is down or timed out
         # In either case, we revert to sending a PDF to Central Mail through the Benefits Intake API
         prepare_params_for_benefits_intake_and_log_error(e)
         submit_form_to_benefits_intake
@@ -292,6 +292,22 @@ def send_confirmation_email(parsed_form_data, form_id, confirmation_number)
         )
         notification_email.send
       end
+
+      def send_intent_received_email(parsed_form_data, confirmation_number, expiration_date)
+        config = {
+          form_data: parsed_form_data,
+          form_number: 'vba_21_0966_intent_api',
+          confirmation_number:,
+          date_submitted: Time.zone.today.strftime('%B %d, %Y'),
+          expiration_date:
+        }
+        notification_email = SimpleFormsApi::NotificationEmail.new(
+          config,
+          notification_type: :received,
+          user: @current_user
+        )
+        notification_email.send
+      end
     end
   end
 end
diff --git a/modules/simple_forms_api/app/services/simple_forms_api/intent_to_file.rb b/modules/simple_forms_api/app/services/simple_forms_api/intent_to_file.rb
index 53cceef8dbe..a835f7446b5 100644
--- a/modules/simple_forms_api/app/services/simple_forms_api/intent_to_file.rb
+++ b/modules/simple_forms_api/app/services/simple_forms_api/intent_to_file.rb
@@ -26,9 +26,7 @@ def submit
         type = benefit_type.downcase
         next if existing_intents[type]
 
-        response = benefits_claims_lighthouse_service.create_intent_to_file(type, ssn)
-        confirmation_number = response.dig('data', 'id')
-        expiration_date = response.dig('data', 'attributes', 'expirationDate')
+        confirmation_number, expiration_date = create_intent_to_file(type, ssn)
       end
 
       user_account_uuid = user.user_account_uuid
@@ -61,6 +59,21 @@ def benefits_claims_lighthouse_service
       @benefits_claims_lighthouse_service ||= BenefitsClaims::Service.new(icn)
     end
 
+    def create_intent_to_file(type, ssn)
+      response = benefits_claims_lighthouse_service.create_intent_to_file(type, ssn)
+      [response.dig('data', 'id'), response.dig('data', 'attributes', 'expirationDate')]
+    rescue Common::Exceptions::ResourceNotFound => e
+      Rails.logger.error(
+        'Simple forms api - Benefits Claims API, intent to file endpoint is down',
+        {
+          intent_type: type,
+          form_number: params[:form_number],
+          error: e
+        }
+      )
+      raise Exceptions::BenefitsClaimsApiDownError
+    end
+
     def existing_compensation_intent
       @existing_compensation_intent ||=
         benefits_claims_lighthouse_service.get_intent_to_file('compensation')&.dig('data', 'attributes')
diff --git a/modules/simple_forms_api/app/services/simple_forms_api/notification_email.rb b/modules/simple_forms_api/app/services/simple_forms_api/notification_email.rb
index d62a29b0e5e..cb2a600b152 100644
--- a/modules/simple_forms_api/app/services/simple_forms_api/notification_email.rb
+++ b/modules/simple_forms_api/app/services/simple_forms_api/notification_email.rb
@@ -2,8 +2,8 @@
 
 module SimpleFormsApi
   class NotificationEmail
-    attr_reader :form_number, :confirmation_number, :date_submitted, :lighthouse_updated_at, :notification_type, :user,
-                :user_account, :form_data
+    attr_reader :form_number, :confirmation_number, :date_submitted, :expiration_date, :lighthouse_updated_at,
+                :notification_type, :user, :user_account, :form_data
 
     TEMPLATE_IDS = {
       'vba_21_0845' => {
@@ -19,7 +19,10 @@ class NotificationEmail
       'vba_21_0966' => {
         confirmation: Settings.vanotify.services.va_gov.template_id.form21_0966_confirmation_email,
         error: Settings.vanotify.services.va_gov.template_id.form21_0966_error_email,
-        received: nil
+        received: Settings.vanotify.services.va_gov.template_id.form21_0966_received_email
+      },
+      'vba_21_0966_intent_api' => {
+        received: Settings.vanotify.services.va_gov.template_id.form21_0966_itf_api_received_email
       },
       'vba_21_0972' => {
         confirmation: Settings.vanotify.services.va_gov.template_id.form21_0972_confirmation_email,
@@ -66,6 +69,7 @@ def initialize(config, notification_type: :confirmation, user: nil, user_account
       @form_number = config[:form_number]
       @confirmation_number = config[:confirmation_number]
       @date_submitted = config[:date_submitted]
+      @expiration_date = config[:expiration_date]
       @lighthouse_updated_at = config[:lighthouse_updated_at]
       @notification_type = notification_type
       @user = user
@@ -90,11 +94,16 @@ def send(at: nil)
 
     def check_missing_keys(config)
       missing_keys = %i[form_data form_number confirmation_number date_submitted].select { |key| config[key].nil? }
+      if config[:form_number] == 'vba_21_0966_intent_api' && config[:expiration_date].nil?
+        missing_keys << :expiration_date
+      end
       raise ArgumentError, "Missing keys: #{missing_keys.join(', ')}" if missing_keys.any?
     end
 
     def flipper?
-      Flipper.enabled?(:"form#{form_number.gsub('vba_', '')}_confirmation_email")
+      number = form_number
+      number = 'vba_21_0966' if form_number.start_with? 'vba_21_0966'
+      Flipper.enabled?(:"form#{number.gsub('vba_', '')}_confirmation_email")
     end
 
     def enqueue_email(at, template_id)
@@ -183,7 +192,7 @@ def get_email_address_from_form_data
         form21_0845_contact_info[0]
       when 'vba_21p_0847', 'vba_21_0972'
         form_data['preparer_email']
-      when 'vba_21_0966'
+      when 'vba_21_0966', 'vba_21_0966_intent_api'
         form21_0966_email_address
       when 'vba_21_4142'
         form_data.dig('veteran', 'email')
@@ -207,7 +216,7 @@ def get_first_name_from_form_data
         form21_0845_contact_info[1]
       when 'vba_21p_0847'
         form_data.dig('preparer_name', 'first')
-      when 'vba_21_0966'
+      when 'vba_21_0966', 'vba_21_0966_intent_api'
         form21_0966_first_name
       when 'vba_21_0972'
         form_data.dig('preparer_full_name', 'first')
@@ -248,7 +257,7 @@ def get_first_name_from_user
     end
 
     def get_personalization(first_name)
-      if @form_number == 'vba_21_0966'
+      if @form_number.start_with? 'vba_21_0966'
         default_personalization(first_name).merge(form21_0966_personalization)
       else
         default_personalization(first_name)
@@ -359,18 +368,31 @@ def form21_0966_email_address
     end
 
     def form21_0966_personalization
+      intent_to_file_benefits, intent_to_file_benefits_links = get_intent_to_file_benefits_variables
+      {
+        'intent_to_file_benefits' => intent_to_file_benefits,
+        'intent_to_file_benefits_links' => intent_to_file_benefits_links,
+        'itf_api_expiration_date' => expiration_date
+      }
+    end
+
+    def get_intent_to_file_benefits_variables
       benefits = @form_data['benefit_selection']
-      intent_to_file_benefits = if benefits['compensation'] && benefits['pension']
-                                  'Disability Compensation (VA Form 21-526EZ) and Pension (VA Form 21P-527EZ)'
-                                elsif benefits['compensation']
-                                  'Disability Compensation (VA Form 21-526EZ)'
-                                elsif benefits['pension']
-                                  'Pension (VA Form 21P-527EZ)'
-                                elsif benefits['survivor']
-                                  'Survivors Pension and/or Dependency and Indemnity Compensation (DIC)' \
-                                    ' (VA Form 21P-534 or VA Form 21P-534EZ)'
-                                end
-      { 'intent_to_file_benefits' => intent_to_file_benefits }
+      if benefits['compensation'] && benefits['pension']
+        ['disability compensation and Veterans pension benefits',
+         '[File for disability compensation (VA Form 21-526EZ)]' \
+         '(https://www.va.gov/disability/file-disability-claim-form-21-526ez/introduction) and [Apply for Veterans ' \
+         'Pension benefits (VA Form 21P-527EZ)](https://www.va.gov/find-forms/about-form-21p-527ez/)']
+      elsif benefits['compensation']
+        ['disability compensation',
+         '[File for disability compensation (VA Form 21-526EZ)](https://www.va.gov/disability/file-disability-claim-form-21-526ez/introduction)']
+      elsif benefits['pension']
+        ['Veterans pension benefits',
+         '[Apply for Veterans Pension benefits (VA Form 21P-527EZ)](https://www.va.gov/find-forms/about-form-21p-527ez/)']
+      elsif benefits['survivor']
+        ['survivors pension benefits',
+         '[Apply for DIC, Survivors Pension, and/or Accrued Benefits (VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)']
+      end
     end
 
     def form40_10007_first_name
diff --git a/modules/simple_forms_api/lib/simple_forms_api.rb b/modules/simple_forms_api/lib/simple_forms_api.rb
index 84c928a7f22..18d6fc212e3 100644
--- a/modules/simple_forms_api/lib/simple_forms_api.rb
+++ b/modules/simple_forms_api/lib/simple_forms_api.rb
@@ -75,5 +75,7 @@ def aggregate_words(parsed_params)
         words.uniq.sort_by(&:length).reverse
       end
     end
+
+    class BenefitsClaimsApiDownError < RuntimeError; end
   end
 end
diff --git a/modules/simple_forms_api/spec/requests/simple_forms_api/v1/simple_forms_spec.rb b/modules/simple_forms_api/spec/requests/simple_forms_api/v1/simple_forms_spec.rb
index e507b06a50d..076bf2e128e 100644
--- a/modules/simple_forms_api/spec/requests/simple_forms_api/v1/simple_forms_spec.rb
+++ b/modules/simple_forms_api/spec/requests/simple_forms_api/v1/simple_forms_spec.rb
@@ -852,9 +852,11 @@
         end
 
         context 'veteran preparer' do
-          it 'successful submission' do
+          let(:expiration_date) { Time.zone.now }
+
+          it 'sends the received email' do
             allow_any_instance_of(SimpleFormsApi::IntentToFile)
-              .to receive(:submit).and_return([confirmation_number, Time.zone.now])
+              .to receive(:submit).and_return([confirmation_number, expiration_date])
             allow_any_instance_of(SimpleFormsApi::IntentToFile)
               .to receive(:existing_intents)
               .and_return({ 'compensation' => 'false', 'pension' => 'false', 'survivor' => 'false' })
@@ -867,14 +869,16 @@
 
             expect(VANotify::EmailJob).to have_received(:perform_async).with(
               'abraham.lincoln@vets.gov',
-              'form21_0966_confirmation_email_template_id',
+              'form21_0966_itf_api_received_email_template_id',
               {
                 'first_name' => 'Veteran',
                 'date_submitted' => Time.zone.today.strftime('%B %d, %Y'),
                 'confirmation_number' => confirmation_number,
                 'lighthouse_updated_at' => nil,
-                'intent_to_file_benefits' => 'Survivors Pension and/or Dependency and Indemnity Compensation (DIC)' \
-                                             ' (VA Form 21P-534 or VA Form 21P-534EZ)'
+                'intent_to_file_benefits' => 'survivors pension benefits',
+                'intent_to_file_benefits_links' => '[Apply for DIC, Survivors Pension, and/or Accrued Benefits ' \
+                                                   '(VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)',
+                'itf_api_expiration_date' => expiration_date
               }
             )
           end
@@ -897,8 +901,10 @@
                 'date_submitted' => Time.zone.today.strftime('%B %d, %Y'),
                 'confirmation_number' => confirmation_number,
                 'lighthouse_updated_at' => nil,
-                'intent_to_file_benefits' => 'Survivors Pension and/or Dependency and Indemnity Compensation (DIC)' \
-                                             ' (VA Form 21P-534 or VA Form 21P-534EZ)'
+                'intent_to_file_benefits' => 'survivors pension benefits',
+                'intent_to_file_benefits_links' => '[Apply for DIC, Survivors Pension, and/or Accrued Benefits ' \
+                                                   '(VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)',
+                'itf_api_expiration_date' => nil
               }
             )
           end
diff --git a/modules/simple_forms_api/spec/services/intent_to_file_spec.rb b/modules/simple_forms_api/spec/services/intent_to_file_spec.rb
index 64a3d36cc34..afe1ab22b8b 100644
--- a/modules/simple_forms_api/spec/services/intent_to_file_spec.rb
+++ b/modules/simple_forms_api/spec/services/intent_to_file_spec.rb
@@ -4,22 +4,55 @@
 require SimpleFormsApi::Engine.root.join('spec', 'spec_helper.rb')
 
 describe SimpleFormsApi::IntentToFile do
-  describe 'an Intent To File has previously been submitted' do
-    let(:params) do
+  let(:ssn) { 'fake-ssn' }
+  let(:icn) { '123498767V234859' }
+  let(:params) do
+    {
+      'benefit_selection' => {
+        'COMPENSATION' => true
+      },
+      'preparer_identification' => 'VETERAN',
+      'veteran_id' => {
+        'ssn' => ssn
+      }
+    }
+  end
+
+  describe '#submit' do
+    let(:expiration_date) { 'fake-expiration-date' }
+    let(:id) { 'fake-id' }
+    let(:compensation_intent) do
       {
-        'benefit_selection' => {
-          'COMPENSATION' => true
-        },
-        'preparer_identification' => 'VETERAN',
-        'preparer_id' => {
-          'ssn' => 'fake-ssn'
+        'data' => {
+          'id' => id,
+          'attributes' => {
+            'expirationDate' => expiration_date
+          }
         }
       }
     end
 
+    context 'lighthouse service is down' do
+      it 'raises Exceptions::BenefitsClaimsApiDownError' do
+        intent_to_file_service = SimpleFormsApi::IntentToFile.new(build(:user), params)
+        allow_any_instance_of(BenefitsClaims::Service).to receive(:get_intent_to_file).with('compensation')
+                                                                                      .and_return(nil)
+        allow_any_instance_of(BenefitsClaims::Service).to receive(:get_intent_to_file).with('pension').and_return(nil)
+        allow_any_instance_of(BenefitsClaims::Service).to receive(:get_intent_to_file).with('survivor').and_return(nil)
+        allow_any_instance_of(BenefitsClaims::Service).to receive(:create_intent_to_file).with(
+          'compensation',
+          ssn
+        ).and_raise(Common::Exceptions::ResourceNotFound)
+
+        expect { intent_to_file_service.submit }.to raise_error(SimpleFormsApi::Exceptions::BenefitsClaimsApiDownError)
+      end
+    end
+  end
+
+  describe 'an Intent To File has previously been submitted' do
     it 'returns no confirmation number and no expiration date if no new ITF is filed' do
       user = build(:user)
-      allow(user).to receive_messages(icn: '123498767V234859', participant_id: 'fake-participant-id')
+      allow(user).to receive_messages(icn:, participant_id: 'fake-participant-id')
       intent_to_file_service = SimpleFormsApi::IntentToFile.new(user, params)
       expiration_date = 'fake-expiration-date'
       compensation_intent = {
@@ -41,22 +74,8 @@
   end
 
   describe 'no Intent to File has previously been submitted' do
-    let(:ssn) { 'fake-ssn' }
-    let(:params) do
-      {
-        'benefit_selection' => {
-          'COMPENSATION' => true
-        },
-        'preparer_identification' => 'VETERAN',
-        'veteran_id' => {
-          'ssn' => ssn
-        }
-      }
-    end
-
     it 'return the expiration date of a newly-created Intent To File' do
-      user = build(:user)
-      intent_to_file_service = SimpleFormsApi::IntentToFile.new(user, params)
+      intent_to_file_service = SimpleFormsApi::IntentToFile.new(build(:user), params)
       expiration_date = 'fake-expiration-date'
       id = 'fake-id'
       compensation_intent = {
diff --git a/modules/simple_forms_api/spec/services/notification_email_spec.rb b/modules/simple_forms_api/spec/services/notification_email_spec.rb
index db39339c802..8c7ec6c455c 100644
--- a/modules/simple_forms_api/spec/services/notification_email_spec.rb
+++ b/modules/simple_forms_api/spec/services/notification_email_spec.rb
@@ -730,7 +730,35 @@
       end
       let(:user) { create(:user, :loa3) }
 
-      context 'template_id is provided', unless: notification_type == :received do
+      it 'sends the email' do
+        allow(VANotify::EmailJob).to receive(:perform_async)
+
+        subject = described_class.new(config, notification_type:, user:)
+
+        subject.send
+
+        expect(VANotify::EmailJob).to have_received(:perform_async).with(
+          user.va_profile_email,
+          "form21_0966_#{notification_type}_email_template_id",
+          {
+            'first_name' => 'Veteran',
+            'date_submitted' => date_submitted,
+            'confirmation_number' => 'confirmation_number',
+            'lighthouse_updated_at' => nil,
+            'intent_to_file_benefits' => 'survivors pension benefits',
+            'intent_to_file_benefits_links' => '[Apply for DIC, Survivors Pension, and/or Accrued Benefits ' \
+                                               '(VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)',
+            'itf_api_expiration_date' => nil
+          }
+        )
+      end
+
+      context 'preparer is surviving dependent' do
+        before do
+          data['preparer_identification'] = 'SURVIVING_DEPENDENT'
+          config[:form_data] = data
+        end
+
         it 'sends the email' do
           allow(VANotify::EmailJob).to receive(:perform_async)
 
@@ -739,23 +767,39 @@
           subject.send
 
           expect(VANotify::EmailJob).to have_received(:perform_async).with(
-            user.va_profile_email,
+            'survivor@dependent.com',
             "form21_0966_#{notification_type}_email_template_id",
             {
-              'first_name' => 'Veteran',
+              'first_name' => 'I',
               'date_submitted' => date_submitted,
               'confirmation_number' => 'confirmation_number',
               'lighthouse_updated_at' => nil,
-              'intent_to_file_benefits' => 'Survivors Pension and/or Dependency and Indemnity Compensation (DIC)' \
-                                           ' (VA Form 21P-534 or VA Form 21P-534EZ)'
+              'intent_to_file_benefits' => 'survivors pension benefits',
+              'intent_to_file_benefits_links' => '[Apply for DIC, Survivors Pension, and/or Accrued Benefits ' \
+                                                 '(VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)',
+              'itf_api_expiration_date' => nil
             }
           )
         end
+      end
+    end
+
+    describe '21_0966 through Intent to File API', if: notification_type == :received do
+      let(:date_submitted) { Time.zone.today.strftime('%B %d, %Y') }
+      let(:expiration_date) { 1.year.from_now.strftime('%B %d, %Y') }
+      let(:data) do
+        fixture_path = Rails.root.join(
+          'modules', 'simple_forms_api', 'spec', 'fixtures', 'form_json', 'vba_21_0966.json'
+        )
+        JSON.parse(fixture_path.read)
+      end
+      let(:user) { create(:user, :loa3) }
 
-        context 'preparer is surviving dependent' do
-          before do
-            data['preparer_identification'] = 'SURVIVING_DEPENDENT'
-            config[:form_data] = data
+      context 'template_id is provided' do
+        context 'expiration_date is provided' do
+          let(:config) do
+            { form_data: data, form_number: 'vba_21_0966_intent_api',
+              confirmation_number: 'confirmation_number', date_submitted:, expiration_date: }
           end
 
           it 'sends the email' do
@@ -766,22 +810,70 @@
             subject.send
 
             expect(VANotify::EmailJob).to have_received(:perform_async).with(
-              'survivor@dependent.com',
-              "form21_0966_#{notification_type}_email_template_id",
+              user.va_profile_email,
+              'form21_0966_itf_api_received_email_template_id',
               {
-                'first_name' => 'I',
+                'first_name' => 'Veteran',
                 'date_submitted' => date_submitted,
                 'confirmation_number' => 'confirmation_number',
                 'lighthouse_updated_at' => nil,
-                'intent_to_file_benefits' => 'Survivors Pension and/or Dependency and Indemnity Compensation (DIC)' \
-                                             ' (VA Form 21P-534 or VA Form 21P-534EZ)'
+                'intent_to_file_benefits' => 'survivors pension benefits',
+                'intent_to_file_benefits_links' => '[Apply for DIC, Survivors Pension, and/or Accrued Benefits ' \
+                                                   '(VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)',
+                'itf_api_expiration_date' => expiration_date
               }
             )
           end
+
+          context 'preparer is surviving dependent' do
+            before do
+              data['preparer_identification'] = 'SURVIVING_DEPENDENT'
+              config[:form_data] = data
+            end
+
+            it 'sends the email' do
+              allow(VANotify::EmailJob).to receive(:perform_async)
+
+              subject = described_class.new(config, notification_type:, user:)
+
+              subject.send
+
+              expect(VANotify::EmailJob).to have_received(:perform_async).with(
+                'survivor@dependent.com',
+                'form21_0966_itf_api_received_email_template_id',
+                {
+                  'first_name' => 'I',
+                  'date_submitted' => date_submitted,
+                  'confirmation_number' => 'confirmation_number',
+                  'lighthouse_updated_at' => nil,
+                  'intent_to_file_benefits' => 'survivors pension benefits',
+                  'intent_to_file_benefits_links' => '[Apply for DIC, Survivors Pension, and/or Accrued Benefits ' \
+                                                     '(VA Form 21P-534EZ)](https://www.va.gov/find-forms/about-form-21p-534ez/)',
+                  'itf_api_expiration_date' => expiration_date
+                }
+              )
+            end
+          end
+        end
+
+        context 'expiration_date is missing' do
+          let(:config) do
+            { form_data: data, form_number: 'vba_21_0966_intent_api',
+              confirmation_number: 'confirmation_number', date_submitted: }
+          end
+
+          it 'raises ArgumentError' do
+            expect { described_class.new(config, notification_type:, user:) }.to raise_error(ArgumentError)
+          end
         end
       end
 
-      context 'template_id is missing', if: notification_type == :received do
+      context 'template_id is missing', unless: notification_type == :received do
+        let(:config) do
+          { form_data: data, form_number: 'vba_21_0966_intent_api',
+            confirmation_number: 'confirmation_number', date_submitted:, expiration_date: }
+        end
+
         let(:data) do
           fixture_path = Rails.root.join(
             'modules', 'simple_forms_api', 'spec', 'fixtures', 'form_json', 'vba_21_0966.json'