diff --git a/app/controllers/users/dossiers_controller.rb b/app/controllers/users/dossiers_controller.rb
index b04237199..d8b7392d2 100644
--- a/app/controllers/users/dossiers_controller.rb
+++ b/app/controllers/users/dossiers_controller.rb
@@ -112,18 +112,20 @@ module Users
       end
 
       sanitized_siret = siret_model.siret
-      begin
-        etablissement = APIEntrepriseService.create_etablissement(@dossier, sanitized_siret, current_user.id)
-      rescue APIEntreprise::API::Error::RequestFailed, APIEntreprise::API::Error::BadGateway, APIEntreprise::API::Error::TimedOut, APIEntreprise::API::Error::ServiceUnavailable, APIEntrepriseToken::TokenError => e
-        if e.is_a?(APIEntrepriseToken::TokenError) || APIEntrepriseService.api_up?
-          # probably random error, invite user to retry
-          Sentry.capture_exception(e, extra: { dossier_id: @dossier.id, siret: sanitized_siret })
-          return render_siret_error(t('errors.messages.siret_network_error'))
-        else
-          # global API Entreprise error. TODO: degraded mode + notify ops
-          return render_siret_error(t('errors.messages.siret_api_down'))
-        end
-      end
+      etablissement = begin
+                        APIEntrepriseService.create_etablissement(@dossier, sanitized_siret, current_user.id)
+                      rescue => error
+                        if error.try(:network_error?) && !APIEntrepriseService.api_up?
+                          # TODO: notify ops
+                          APIEntrepriseService.create_etablissement_as_degraded_mode(@dossier, sanitized_siret, current_user.id)
+                        else
+                          Sentry.capture_exception(error, extra: { dossier_id: @dossier.id, siret: })
+
+                          # probably random error, invite user to retry
+                          return render_siret_error(t('errors.messages.siret_network_error'))
+                        end
+                      end
+
       if etablissement.nil?
         return render_siret_error(t('errors.messages.siret_unknown'))
       end
diff --git a/app/lib/api_entreprise/api/error.rb b/app/lib/api_entreprise/api/error.rb
index f0aa3de7d..7a37417f5 100644
--- a/app/lib/api_entreprise/api/error.rb
+++ b/app/lib/api_entreprise/api/error.rb
@@ -15,4 +15,8 @@ class APIEntreprise::API::Error < ::StandardError
 
     super(msg)
   end
+
+  def network_error?
+    true
+  end
 end
diff --git a/app/lib/api_entreprise/api/error/bad_format_request.rb b/app/lib/api_entreprise/api/error/bad_format_request.rb
index 52cf8e517..147718e0e 100644
--- a/app/lib/api_entreprise/api/error/bad_format_request.rb
+++ b/app/lib/api_entreprise/api/error/bad_format_request.rb
@@ -1,2 +1,5 @@
 class APIEntreprise::API::Error::BadFormatRequest < APIEntreprise::API::Error
+  def network_error?
+    false
+  end
 end
diff --git a/app/lib/api_entreprise/api/error/resource_not_found.rb b/app/lib/api_entreprise/api/error/resource_not_found.rb
index 4fc38f86e..f6cb118f7 100644
--- a/app/lib/api_entreprise/api/error/resource_not_found.rb
+++ b/app/lib/api_entreprise/api/error/resource_not_found.rb
@@ -1,2 +1,5 @@
 class APIEntreprise::API::Error::ResourceNotFound < APIEntreprise::API::Error
+  def network_error?
+    false
+  end
 end
diff --git a/app/models/etablissement.rb b/app/models/etablissement.rb
index 8082085bf..fb6c6fc4d 100644
--- a/app/models/etablissement.rb
+++ b/app/models/etablissement.rb
@@ -222,6 +222,10 @@ class Etablissement < ApplicationRecord
     SpreadsheetArchitect.send("to_#{format}".to_sym, bilans_bdf_data)
   end
 
+  def as_degraded_mode?
+    adresse.nil? # TOOD: maybe dedicated column or more robust way
+  end
+
   private
 
   def bilans_new_keys
diff --git a/app/services/api_entreprise_service.rb b/app/services/api_entreprise_service.rb
index 67351ea7f..ac363cb49 100644
--- a/app/services/api_entreprise_service.rb
+++ b/app/services/api_entreprise_service.rb
@@ -1,41 +1,62 @@
 class APIEntrepriseService
-  # create etablissement with EtablissementAdapter
-  # enqueue api_entreprise jobs to retrieve
-  # all informations we can get about a SIRET.
-  #
-  # Returns nil if the SIRET is unknown
-  #
-  # Raises a APIEntreprise::API::Error::RequestFailed exception on transient errors
-  # (timeout, 5XX HTTP error code, etc.)
-  def self.create_etablissement(dossier_or_champ, siret, user_id = nil)
-    etablissement_params = APIEntreprise::EtablissementAdapter.new(siret, dossier_or_champ.procedure.id).to_params
-    return nil if etablissement_params.empty?
+  class << self
+    # create etablissement with EtablissementAdapter
+    # enqueue api_entreprise jobs to retrieve
+    # all informations we can get about a SIRET.
+    #
+    # Returns nil if the SIRET is unknown
+    #
+    # Raises a APIEntreprise::API::Error::RequestFailed exception on transient errors
+    # (timeout, 5XX HTTP error code, etc.)
+    #
+    def create_etablissement(dossier_or_champ, siret, user_id = nil)
+      procedure_id = dossier_or_champ.procedure.id
 
-    etablissement = dossier_or_champ.build_etablissement(etablissement_params)
-    etablissement.save!
+      etablissement_params = APIEntreprise::EtablissementAdapter.new(siret, procedure_id).to_params
+      return nil if etablissement_params.empty?
 
-    [
-      APIEntreprise::EntrepriseJob, APIEntreprise::AssociationJob, APIEntreprise::ExercicesJob,
-      APIEntreprise::EffectifsJob, APIEntreprise::EffectifsAnnuelsJob, APIEntreprise::AttestationSocialeJob,
-      APIEntreprise::BilansBdfJob
-    ].each do |job|
-      job.perform_later(etablissement.id, dossier_or_champ.procedure.id)
+      etablissement = dossier_or_champ.build_etablissement(etablissement_params)
+      etablissement.save!
+
+      perform_later_fetch_jobs(etablissement, procedure_id, user_id)
+
+      etablissement
     end
-    APIEntreprise::AttestationFiscaleJob.perform_later(etablissement.id, dossier_or_champ.procedure.id, user_id)
 
-    etablissement
-  end
+    def create_etablissement_as_degraded_mode(dossier_or_champ, siret, user_id = nil)
+      etablissement = dossier_or_champ.build_etablissement(siret: siret)
+      etablissement.save!
 
-  def self.api_up?(uname = "apie_2_etablissements")
-    statuses = APIEntreprise::API.new.current_status.fetch(:results)
+      procedure_id = dossier_or_champ.procedure.id
 
-    # find results having uname = apie_2_etablissements
-    status = statuses.find { |result| result[:uname] == uname }
+      perform_later_fetch_jobs(etablissement, procedure_id, user_id, wait: 30.minutes)
 
-    status.fetch(:code) == 200
-  rescue => e
-    Sentry.capture_exception(e, extra: { uname: uname })
+      etablissement
+    end
 
-    nil
+    def perform_later_fetch_jobs(etablissement, procedure_id, user_id, wait: nil)
+      [
+        APIEntreprise::EntrepriseJob, APIEntreprise::AssociationJob, APIEntreprise::ExercicesJob,
+        APIEntreprise::EffectifsJob, APIEntreprise::EffectifsAnnuelsJob, APIEntreprise::AttestationSocialeJob,
+        APIEntreprise::BilansBdfJob
+      ].each do |job|
+        job.set(wait:).perform_later(etablissement.id, procedure_id)
+      end
+
+      APIEntreprise::AttestationFiscaleJob.set(wait:).perform_later(etablissement.id, procedure_id, user_id)
+    end
+
+    def api_up?(uname = "apie_2_etablissements")
+      statuses = APIEntreprise::API.new.current_status.fetch(:results)
+
+      # find results having uname = apie_2_etablissements
+      status = statuses.find { |result| result[:uname] == uname }
+
+      status.fetch(:code) == 200
+    rescue => e
+      Sentry.capture_exception(e, extra: { uname: uname })
+
+      nil
+    end
   end
 end
diff --git a/app/views/users/dossiers/etablissement.html.haml b/app/views/users/dossiers/etablissement.html.haml
index 6fca32e50..bbedeb3d2 100644
--- a/app/views/users/dossiers/etablissement.html.haml
+++ b/app/views/users/dossiers/etablissement.html.haml
@@ -8,7 +8,23 @@
     %h1 Informations sur l’établissement
 
     - etablissement = @dossier.etablissement
-    - if etablissement.diffusable_commercialement == false
+
+    - if etablissement.as_degraded_mode?
+      = render Dsfr::CalloutComponent.new(title: "Nous n'avons pas pu vérifier votre SIRET", theme: :warning, icon: "fr-icon-feedback-fill") do |c|
+        - c.with_body do
+          %p
+            L'annuaire INSEE est indisponible, nous ne pouvons pas vérifier votre SIRET.
+            %br
+            %br
+            Veuillez vérifier par vous-même que le numéro
+            %strong= etablissement.siret
+            correspond bien à votre entreprise :
+
+          %p
+            = link_to annuaire_link(etablissement.siret), class: "fr-btn fr-btn--secondary", **external_link_attributes do
+              Vérifier dans l'annuaire des entreprises
+
+    - elsif etablissement.diffusable_commercialement == false
       %p= t('warning_for_private_info', scope: 'views.shared.dossiers.identite_entreprise', etablissement: raison_sociale_or_name(etablissement))
 
     - else
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index a04492bad..ff8847661 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -370,7 +370,6 @@ fr:
       procedure_not_found: "La démarche n’existe pas"
       siret_unknown: 'Désolé, nous n’avons pas trouvé d’établissement enregistré correspondant à ce numéro SIRET.'
       siret_network_error: 'Désolé, la récupération des informations SIRET est temporairement indisponible. Veuillez réessayer dans quelques instants.'
-      siret_api_down: "L'INSEE rencontre actuellement un problème majeur qui empêche le traitement des informations SIRET. Il n'y a pas encore de date de résolution annoncée."
       siret_not_found: 'Nous n’avons pas trouvé d’établissement correspondant à ce numéro de SIRET.'
       # etablissement_fail: 'Désolé, nous n’avons pas réussi à enregistrer l’établissement correspondant à ce numéro SIRET'
       france_connect:
diff --git a/spec/controllers/users/dossiers_controller_spec.rb b/spec/controllers/users/dossiers_controller_spec.rb
index 82ecfc697..ab2ffac25 100644
--- a/spec/controllers/users/dossiers_controller_spec.rb
+++ b/spec/controllers/users/dossiers_controller_spec.rb
@@ -273,7 +273,11 @@ describe Users::DossiersController, type: :controller do
         let(:api_etablissement_status) { 502 }
         let(:api_current_status_response) { File.read('spec/fixtures/files/api_entreprise/current_status.json').tr('200', '502') }
 
-        it_behaves_like 'the request fails with an error', I18n.t('errors.messages.siret_api_down')
+        it "create an etablissement only with SIRET as degraded mode" do
+          dossier.reload
+          expect(dossier.etablissement.siret).to eq(siret)
+          expect(dossier.etablissement).to be_as_degraded_mode
+        end
       end
 
       context 'when API-Entreprise doesn’t know this SIRET' do
diff --git a/spec/services/api_entreprise_service_spec.rb b/spec/services/api_entreprise_service_spec.rb
index 5fc681438..93ec39539 100644
--- a/spec/services/api_entreprise_service_spec.rb
+++ b/spec/services/api_entreprise_service_spec.rb
@@ -1,4 +1,16 @@
 describe APIEntrepriseService do
+  shared_examples 'schedule fetch of all etablissement params' do
+    [
+      APIEntreprise::EntrepriseJob, APIEntreprise::AssociationJob, APIEntreprise::ExercicesJob,
+      APIEntreprise::EffectifsJob, APIEntreprise::EffectifsAnnuelsJob, APIEntreprise::AttestationSocialeJob,
+      APIEntreprise::BilansBdfJob
+    ].each do |job|
+      it "should enqueue #{job.class.name}" do
+        expect { subject }.to have_enqueued_job(job)
+      end
+    end
+  end
+
   describe '#create_etablissement' do
     before do
       stub_request(:get, /https:\/\/entreprise.api.gouv.fr\/v2\/etablissements\/#{siret}/)
@@ -23,15 +35,7 @@ describe APIEntrepriseService do
         expect(subject[:siret]).to eq(siret)
       end
 
-      [
-        APIEntreprise::EntrepriseJob, APIEntreprise::AssociationJob, APIEntreprise::ExercicesJob,
-        APIEntreprise::EffectifsJob, APIEntreprise::EffectifsAnnuelsJob, APIEntreprise::AttestationSocialeJob,
-        APIEntreprise::BilansBdfJob
-      ].each do |job|
-        it "should enqueue #{job.class.name}" do
-          expect { subject }.to have_enqueued_job(job)
-        end
-      end
+      it_behaves_like 'schedule fetch of all etablissement params'
     end
 
     context 'when etablissement api down' do
@@ -53,6 +57,24 @@ describe APIEntrepriseService do
     end
   end
 
+  describe '#create_etablissement_as_degraded_mode' do
+    let(:siret) { '41816609600051' }
+    let(:procedure) { create(:procedure) }
+    let(:dossier) { create(:dossier, procedure: procedure) }
+    let(:user_id) { 12 }
+
+    subject(:etablissement) { APIEntrepriseService.create_etablissement_as_degraded_mode(dossier, siret, user_id) }
+
+    it 'should create an etablissement with minimumal attributes' do
+      etablissement = subject
+
+      expect(etablissement.siret).to eq(siret)
+      expect(etablissement).to be_as_degraded_mode
+    end
+
+    it_behaves_like 'schedule fetch of all etablissement params'
+  end
+
   describe "#api_up?" do
     subject { described_class.api_up? }
     let(:body) { File.read('spec/fixtures/files/api_entreprise/current_status.json') }
diff --git a/spec/views/users/dossiers/etablissement.html.haml_spec.rb b/spec/views/users/dossiers/etablissement.html.haml_spec.rb
index 8457012d7..d5302bc96 100644
--- a/spec/views/users/dossiers/etablissement.html.haml_spec.rb
+++ b/spec/views/users/dossiers/etablissement.html.haml_spec.rb
@@ -27,4 +27,13 @@ describe 'users/dossiers/etablissement.html.haml', type: :view do
   it 'prépare le footer' do
     expect(footer).to have_selector('footer')
   end
+
+  context 'etablissement as degraded mode' do
+    let(:etablissement) { Etablissement.create!(siret: '41816609600051') }
+
+    it "affiche une notice avec un lien de vérification vers l'annuaire" do
+      expect(rendered).to have_text(etablissement.siret)
+      expect(rendered).to have_link("Vérifier dans l'annuaire des entreprises", href: "https://annuaire-entreprises\.data\.gouv\.fr/rechercher?terme=#{etablissement.siret}")
+    end
+  end
 end