diff --git a/app/components/instructeurs/column_picker_component.rb b/app/components/instructeurs/column_picker_component.rb
index 92cc524da..f8c1b0fba 100644
--- a/app/components/instructeurs/column_picker_component.rb
+++ b/app/components/instructeurs/column_picker_component.rb
@@ -12,7 +12,7 @@ class Instructeurs::ColumnPickerComponent < ApplicationComponent
   def displayable_columns_for_select
     [
       procedure.columns.filter(&:displayable).map { |column| [column.label, column.id] },
-      procedure_presentation.displayed_fields.map { Column.new(**_1.deep_symbolize_keys.merge(procedure_id: procedure.id)).id }
+      procedure_presentation.displayed_columns.map(&:id)
     ]
   end
 end
diff --git a/app/controllers/instructeurs/procedures_controller.rb b/app/controllers/instructeurs/procedures_controller.rb
index 89044e7d2..68ed3b7df 100644
--- a/app/controllers/instructeurs/procedures_controller.rb
+++ b/app/controllers/instructeurs/procedures_controller.rb
@@ -104,7 +104,7 @@ module Instructeurs
         .page(page)
         .per(ITEMS_PER_PAGE)
 
-      @projected_dossiers = DossierProjectionService.project(@filtered_sorted_paginated_ids, procedure_presentation.displayed_fields)
+      @projected_dossiers = DossierProjectionService.project(@filtered_sorted_paginated_ids, procedure_presentation.displayed_columns)
       @disable_checkbox_all = @projected_dossiers.all? { _1.batch_operation_id.present? }
 
       @batch_operations = BatchOperation.joins(:groupe_instructeurs)
@@ -133,9 +133,9 @@ module Instructeurs
     end
 
     def update_displayed_fields
-      values = (params['values'].presence || []).reject(&:empty?)
+      ids = (params['values'].presence || []).reject(&:empty?)
 
-      procedure_presentation.update_displayed_fields(values)
+      procedure_presentation.update!(displayed_columns: ids)
 
       redirect_back(fallback_location: instructeur_procedure_url(procedure))
     end
diff --git a/app/controllers/recherche_controller.rb b/app/controllers/recherche_controller.rb
index 98d684792..63772f839 100644
--- a/app/controllers/recherche_controller.rb
+++ b/app/controllers/recherche_controller.rb
@@ -3,10 +3,14 @@
 class RechercheController < ApplicationController
   before_action :authenticate_logged_user!
   ITEMS_PER_PAGE = 25
+
+  # the columns are generally procedure specific
+  # but in the search context, we are looking for dossiers from multiple procedures
+  # so we are faking the columns with a random procedure_id
   PROJECTIONS = [
-    { "table" => 'procedure', "column" => 'libelle' },
-    { "table" => 'user', "column" => 'email' },
-    { "table" => 'procedure', "column" => 'procedure_id' }
+    Column.new(procedure_id: 666, table: 'procedure', column: 'libelle'),
+    Column.new(procedure_id: 666, table: 'user', column: 'email'),
+    Column.new(procedure_id: 666, table: 'procedure', column: 'procedure_id')
   ]
 
   def nav_bar_profile
diff --git a/app/models/procedure_presentation.rb b/app/models/procedure_presentation.rb
index 1619ecf37..d4dcecc09 100644
--- a/app/models/procedure_presentation.rb
+++ b/app/models/procedure_presentation.rb
@@ -21,6 +21,8 @@ class ProcedurePresentation < ApplicationRecord
   validate :check_filters_max_length
   validate :check_filters_max_integer
 
+  attribute :displayed_columns, :column, array: true
+
   attribute :sorted_column, :sorted_column
   def sorted_column = super || procedure.default_sorted_column # Dummy override to set default value
 
@@ -42,7 +44,7 @@ class ProcedurePresentation < ApplicationRecord
   def displayed_fields_for_headers
     [
       Column.new(procedure_id: procedure.id, table: 'self', column: 'id', classname: 'number-col'),
-      *displayed_fields.map { Column.new(**_1.deep_symbolize_keys.merge(procedure_id: procedure.id)) },
+      *displayed_columns,
       Column.new(procedure_id: procedure.id, table: 'self', column: 'state', classname: 'state-col'),
       *procedure.sva_svr_columns
     ]
diff --git a/app/services/dossier_projection_service.rb b/app/services/dossier_projection_service.rb
index fbbe64da8..041969489 100644
--- a/app/services/dossier_projection_service.rb
+++ b/app/services/dossier_projection_service.rb
@@ -40,8 +40,10 @@ class DossierProjectionService
   # Those hashes are needed because:
   # - the order of the intermediary query results are unknown
   # - some values can be missing (if a revision added or removed them)
-  def self.project(dossiers_ids, fields)
-    fields = fields.deep_dup
+  def self.project(dossiers_ids, columns)
+    fields = columns.map { |c| { TABLE => c.table, COLUMN => c.column } }
+    champ_value = champ_value_formatter(dossiers_ids, fields)
+
     state_field = { TABLE => 'self', COLUMN => 'state' }
     archived_field = { TABLE => 'self', COLUMN => 'archived' }
     batch_operation_field = { TABLE => 'self', COLUMN => 'batch_operation_id' }
@@ -53,7 +55,7 @@ class DossierProjectionService
     individual_last_name = { TABLE => 'individual', COLUMN => 'nom' }
     sva_svr_decision_on_field = { TABLE => 'self', COLUMN => 'sva_svr_decision_on' }
     dossier_corrections = { TABLE => 'dossier_corrections', COLUMN => 'resolved_at' }
-    champ_value = champ_value_formatter(dossiers_ids, fields)
+
     ([state_field, archived_field, sva_svr_decision_on_field, hidden_by_user_at_field, hidden_by_administration_at_field, hidden_by_reason_field, for_tiers_field, individual_first_name, individual_last_name, batch_operation_field, dossier_corrections] + fields)
       .each { |f| f[:id_value_h] = {} }
       .group_by { |f| f[TABLE] } # one query per table
diff --git a/spec/lib/tasks/deployment/20240920130741_migrate_procedure_presentation_to_columns.rake_spec.rb b/spec/lib/tasks/deployment/20240920130741_migrate_procedure_presentation_to_columns.rake_spec.rb
index 0494ba5e7..795736c26 100644
--- a/spec/lib/tasks/deployment/20240920130741_migrate_procedure_presentation_to_columns.rake_spec.rb
+++ b/spec/lib/tasks/deployment/20240920130741_migrate_procedure_presentation_to_columns.rake_spec.rb
@@ -38,10 +38,7 @@ describe '20240920130741_migrate_procedure_presentation_to_columns.rake' do
   it 'populates the columns' do
     procedure_id = procedure.id
 
-    expect(procedure_presentation.displayed_columns).to eq([
-      { "procedure_id" => procedure_id, "column_id" => "etablissement/entreprise_raison_sociale" },
-      { "procedure_id" => procedure_id, "column_id" => "type_de_champ/#{stable_id}" }
-    ])
+    expect(procedure_presentation.displayed_columns.map(&:label)).to eq(["Raison sociale", procedure.active_revision.types_de_champ.first.libelle])
 
     order, column_id = procedure_presentation
       .sorted_column
diff --git a/spec/models/instructeur_spec.rb b/spec/models/instructeur_spec.rb
index 9523e6779..5ac18c0df 100644
--- a/spec/models/instructeur_spec.rb
+++ b/spec/models/instructeur_spec.rb
@@ -167,20 +167,6 @@ describe Instructeur, type: :model do
       it { expect(errors).to be_nil }
     end
 
-    context 'with invalid presentation' do
-      let(:procedure_id) { procedure.id }
-      before do
-        pp = ProcedurePresentation.create(assign_to: procedure_assign, displayed_fields: [{ 'table' => 'invalid', 'column' => 'random' }])
-        pp.save(:validate => false)
-      end
-
-      it 'recreates a valid prsentation' do
-        expect(procedure_presentation).to be_persisted
-      end
-      it { expect(procedure_presentation).to be_valid }
-      it { expect(errors).to be_present }
-    end
-
     context 'with default presentation' do
       let(:procedure_id) { procedure_2.id }
 
diff --git a/spec/models/procedure_presentation_spec.rb b/spec/models/procedure_presentation_spec.rb
index 315deccb0..2fd15c6e2 100644
--- a/spec/models/procedure_presentation_spec.rb
+++ b/spec/models/procedure_presentation_spec.rb
@@ -40,8 +40,11 @@ describe ProcedurePresentation do
   describe 'validation' do
     it { expect(build(:procedure_presentation)).to be_valid }
 
-    context 'of displayed fields' do
-      it { expect(build(:procedure_presentation, displayed_fields: [{ table: "user", column: "reset_password_token", "order" => "asc" }])).to be_invalid }
+    context 'of displayed columns' do
+      it do
+        pp = build(:procedure_presentation, displayed_columns: [{ table: "user", column: "reset_password_token", procedure_id: }])
+        expect { pp.displayed_columns }.to raise_error(ActiveRecord::RecordNotFound)
+      end
     end
 
     context 'of filters' do
@@ -795,6 +798,9 @@ describe ProcedurePresentation do
   end
 
   describe '#update_displayed_fields' do
+    let(:en_construction_column) { procedure.find_column(label: 'En construction le') }
+    let(:mise_a_jour_column) { procedure.find_column(label: 'Mis à jour le') }
+
     let(:procedure_presentation) do
       create(:procedure_presentation, assign_to:).tap do |pp|
         pp.update(sorted_column: SortedColumn.new(column: procedure.find_column(label: 'Demandeur'), order: 'desc'))
@@ -802,24 +808,19 @@ describe ProcedurePresentation do
     end
 
     subject do
-      procedure_presentation.update_displayed_fields([
-        procedure.find_column(label: 'En construction le').id,
-        procedure.find_column(label: 'Mis à jour le').id
+      procedure_presentation.update(displayed_columns: [
+        en_construction_column.id, mise_a_jour_column.id
       ])
     end
 
     it 'should update displayed_fields' do
-      expect(procedure_presentation.displayed_columns).to eq([])
+      expect(procedure_presentation.displayed_columns).to eq(procedure.default_displayed_columns)
 
       subject
 
       expect(procedure_presentation.displayed_columns).to eq([
-        { "column_id" => "self/en_construction_at", "procedure_id" => procedure.id },
-        { "column_id" => "self/updated_at", "procedure_id" => procedure.id }
+        en_construction_column, mise_a_jour_column
       ])
-
-      expect(procedure_presentation.sorted_column).to eq(procedure.default_sorted_column)
-      expect(procedure_presentation.sorted_column.order).to eq('desc')
     end
   end
 end
diff --git a/spec/services/dossier_projection_service_spec.rb b/spec/services/dossier_projection_service_spec.rb
index 1b577cf40..7671bdda5 100644
--- a/spec/services/dossier_projection_service_spec.rb
+++ b/spec/services/dossier_projection_service_spec.rb
@@ -2,7 +2,7 @@
 
 describe DossierProjectionService do
   describe '#project' do
-    subject { described_class.project(dossiers_ids, fields) }
+    subject { described_class.project(dossiers_ids, columns) }
 
     context 'with multiple dossier' do
       let!(:procedure) { create(:procedure, types_de_champ_public: [{}, { type: :linked_drop_down_list }]) }
@@ -11,12 +11,9 @@ describe DossierProjectionService do
       let!(:dossier_3) { create(:dossier, :en_instruction, procedure: procedure) }
 
       let(:dossiers_ids) { [dossier_3.id, dossier_1.id, dossier_2.id] }
-      let(:fields) do
+      let(:columns) do
         procedure.active_revision.types_de_champ_public.map do |type_de_champ|
-          {
-            "table" => "type_de_champ",
-            "column" => type_de_champ.stable_id.to_s
-          }
+          procedure.find_column(label: type_de_champ.libelle)
         end
       end
 
@@ -55,12 +52,9 @@ describe DossierProjectionService do
       let!(:dossier) { create(:dossier, procedure:) }
 
       let(:dossiers_ids) { [dossier.id] }
-      let(:fields) do
+      let(:columns) do
         [
-          {
-            "table" => "type_de_champ",
-            "column" => procedure.active_revision.types_de_champ_public[0].stable_id.to_s
-          }
+          procedure.find_column(label: procedure.active_revision.types_de_champ_public[0].libelle)
         ]
       end
 
@@ -78,38 +72,37 @@ describe DossierProjectionService do
     end
 
     context 'attributes by attributes' do
-      let(:fields) { [{ "table" => table, "column" => column }] }
+      let(:procedure) { create(:procedure) }
+      let(:columns) { [procedure.find_column(label:)] }
       let(:dossiers_ids) { [dossier.id] }
 
       subject { super()[0].columns[0] }
 
       context 'for self table' do
-        let(:table) { 'self' }
-
         context 'for created_at column' do
-          let(:column) { 'created_at' }
-          let(:dossier) { Timecop.freeze(Time.zone.local(1992, 3, 22)) { create(:dossier) } }
+          let(:label) { 'Créé le' }
+          let(:dossier) { Timecop.freeze(Time.zone.local(1992, 3, 22)) { create(:dossier, procedure:) } }
 
           it { is_expected.to eq('22/03/1992') }
         end
 
         context 'for en_construction_at column' do
-          let(:column) { 'en_construction_at' }
-          let(:dossier) { create(:dossier, :en_construction, en_construction_at: Time.zone.local(2018, 10, 17)) }
+          let(:label) { 'En construction le' }
+          let(:dossier) { create(:dossier, :en_construction, en_construction_at: Time.zone.local(2018, 10, 17), procedure:) }
 
           it { is_expected.to eq('17/10/2018') }
         end
 
         context 'for depose_at column' do
-          let(:column) { 'depose_at' }
-          let(:dossier) { create(:dossier, :en_construction, depose_at: Time.zone.local(2018, 10, 17)) }
+          let(:label) { 'Déposé le' }
+          let(:dossier) { create(:dossier, :en_construction, depose_at: Time.zone.local(2018, 10, 17), procedure:) }
 
           it { is_expected.to eq('17/10/2018') }
         end
 
         context 'for updated_at column' do
-          let(:column) { 'updated_at' }
-          let(:dossier) { create(:dossier) }
+          let(:label) { 'Mis à jour le' }
+          let(:dossier) { create(:dossier, procedure:) }
 
           before { dossier.touch(time: Time.zone.local(2018, 9, 25)) }
 
@@ -118,61 +111,56 @@ describe DossierProjectionService do
       end
 
       context 'for user table' do
-        let(:table) { 'user' }
-        let(:column) { 'email' }
+        let(:label) { 'Demandeur' }
 
-        let(:dossier) { create(:dossier, user: create(:user, email: 'bla@yopmail.com')) }
+        let(:dossier) { create(:dossier, user: create(:user, email: 'bla@yopmail.com'), procedure:) }
 
         it { is_expected.to eq('bla@yopmail.com') }
       end
 
       context 'for individual table' do
-        let(:table) { 'individual' }
         let(:procedure) { create(:procedure, :for_individual, :with_type_de_champ, :with_type_de_champ_private) }
-        let(:dossier) { create(:dossier, procedure: procedure, individual: build(:individual, nom: 'Martin', prenom: 'Jacques', gender: 'M.')) }
+        let(:dossier) { create(:dossier, procedure:, individual: build(:individual, nom: 'Martin', prenom: 'Jacques', gender: 'M.')) }
 
         context 'for prenom column' do
-          let(:column) { 'prenom' }
+          let(:label) { 'Prénom' }
 
           it { is_expected.to eq('Jacques') }
         end
 
         context 'for nom column' do
-          let(:column) { 'nom' }
+          let(:label) { 'Nom' }
 
           it { is_expected.to eq('Martin') }
         end
 
         context 'for gender column' do
-          let(:column) { 'gender' }
+          let(:label) { 'Civilité' }
 
           it { is_expected.to eq('M.') }
         end
       end
 
       context 'for etablissement table' do
-        let(:table) { 'etablissement' }
-        let(:column) { 'code_postal' } # All other columns work the same, no extra test required
+        let(:label) { 'Code postal' }
 
-        let!(:dossier) { create(:dossier, etablissement: create(:etablissement, code_postal: '75008')) }
+        let!(:dossier) { create(:dossier, procedure:, etablissement: create(:etablissement, code_postal: '75008')) }
 
         it { is_expected.to eq('75008') }
       end
 
       context 'for groupe_instructeur table' do
-        let(:table) { 'groupe_instructeur' }
-        let(:column) { 'label' }
+        let(:label) { 'Groupe instructeur' }
 
-        let!(:dossier) { create(:dossier) }
+        let!(:dossier) { create(:dossier, procedure:) }
 
         it { is_expected.to eq('défaut') }
       end
 
       context 'for followers_instructeurs table' do
-        let(:table) { 'followers_instructeurs' }
-        let(:column) { 'email' }
+        let(:label) { 'Email instructeur' }
 
-        let(:dossier) { create(:dossier) }
+        let(:dossier) { create(:dossier, procedure:) }
         let!(:follow1) { create(:follow, dossier: dossier, instructeur: create(:instructeur, email: 'b@host.fr')) }
         let!(:follow2) { create(:follow, dossier: dossier, instructeur: create(:instructeur, email: 'a@host.fr')) }
         let!(:follow3) { create(:follow, dossier: dossier, instructeur: create(:instructeur, email: 'c@host.fr')) }
@@ -181,19 +169,21 @@ describe DossierProjectionService do
       end
 
       context 'for type_de_champ table' do
-        let(:table) { 'type_de_champ' }
-        let(:dossier) { create(:dossier) }
-        let(:column) { dossier.procedure.active_revision.types_de_champ_public.first.stable_id.to_s }
+        let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :text }]) }
+        let(:dossier) { create(:dossier, procedure:) }
+        let(:label) { dossier.procedure.active_revision.types_de_champ_public.first.libelle }
 
-        before { dossier.project_champs_public.first.update(value: 'kale') }
+        before do
+          dossier.project_champs_public.first.update(value: 'kale')
+        end
 
         it { is_expected.to eq('kale') }
       end
 
       context 'for type_de_champ_private table' do
-        let(:table) { 'type_de_champ_private' }
-        let(:dossier) { create(:dossier) }
-        let(:column) { dossier.procedure.active_revision.types_de_champ_private.first.stable_id.to_s }
+        let(:procedure) { create(:procedure, types_de_champ_private: [{ type: :text }]) }
+        let(:dossier) { create(:dossier, procedure:) }
+        let(:label) { dossier.procedure.active_revision.types_de_champ_private.first.libelle }
 
         before { dossier.project_champs_private.first.update(value: 'quinoa') }
 
@@ -201,10 +191,9 @@ describe DossierProjectionService do
       end
 
       context 'for type_de_champ table and value to.s' do
-        let(:table) { 'type_de_champ' }
         let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :yes_no }]) }
-        let(:dossier) { create(:dossier, procedure: procedure) }
-        let(:column) { dossier.procedure.active_revision.types_de_champ_public.first.stable_id.to_s }
+        let(:dossier) { create(:dossier, procedure:) }
+        let(:label) { dossier.procedure.active_revision.types_de_champ_public.first.libelle }
 
         before { dossier.project_champs_public.first.update(value: 'true') }
 
@@ -212,10 +201,9 @@ describe DossierProjectionService do
       end
 
       context 'for type_de_champ table and value to.s which needs data field' do
-        let(:table) { 'type_de_champ' }
         let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :address }]) }
-        let(:dossier) { create(:dossier, procedure: procedure) }
-        let(:column) { dossier.procedure.active_revision.types_de_champ_public.first.stable_id.to_s }
+        let(:dossier) { create(:dossier, procedure:) }
+        let(:label) { dossier.procedure.active_revision.types_de_champ_public.first.libelle }
 
         before { dossier.project_champs_public.first.update(value: '18 a la bonne rue', data: { 'label' => '18 a la bonne rue', 'departement' => 'd' }) }
 
@@ -223,10 +211,9 @@ describe DossierProjectionService do
       end
 
       context 'for type_de_champ table: type_de_champ pays which needs external_id field' do
-        let(:table) { 'type_de_champ' }
         let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :pays }]) }
-        let(:dossier) { create(:dossier, procedure: procedure) }
-        let(:column) { dossier.procedure.active_revision.types_de_champ_public.first.stable_id.to_s }
+        let(:dossier) { create(:dossier, procedure:) }
+        let(:label) { dossier.procedure.active_revision.types_de_champ_public.first.libelle }
 
         around do |example|
           I18n.with_locale(:fr) do
@@ -254,8 +241,10 @@ describe DossierProjectionService do
       context 'for dossier corrections table' do
         let(:table) { 'dossier_corrections' }
         let(:column) { 'resolved_at' }
-        let(:dossier) { create(:dossier, :en_construction) }
-        subject { described_class.project(dossiers_ids, fields)[0] }
+        let(:procedure) { create(:procedure) }
+        let(:columns) { [Column.new(procedure_id: procedure.id, table:, column:)] } # should somehow be present in column concern
+        let(:dossier) { create(:dossier, :en_construction, procedure:) }
+        subject { described_class.project(dossiers_ids, columns)[0] }
 
         context "when dossier has pending correction" do
           before { create(:dossier_correction, dossier:) }