diff --git a/app/assets/stylesheets/dossier_edit.scss b/app/assets/stylesheets/dossier_edit.scss
index ca32e9e2be1..0d15e692aab 100644
--- a/app/assets/stylesheets/dossier_edit.scss
+++ b/app/assets/stylesheets/dossier_edit.scss
@@ -42,11 +42,6 @@ $dossier-actions-bar-border-width: 1px;
     }
   }
 
-  .characters-count {
-    position: relative;
-    top: -1rem;
-  }
-
   .warning {
     margin-bottom: 20px;
     background-color: #f9b91666;
diff --git a/app/assets/stylesheets/forms.scss b/app/assets/stylesheets/forms.scss
index 274679c691c..0f8bec5c329 100644
--- a/app/assets/stylesheets/forms.scss
+++ b/app/assets/stylesheets/forms.scss
@@ -166,15 +166,16 @@
       font-weight: normal;
     }
   }
-
-  input[type=text],
-  input[type=email],
+  .fr-label {
+    // la description d'un champ peut contenir du markup (markdown->html),
+    // on herite donc la fontsize/mrgin/padding du fr-hint-text
+    .fr-hint-text > *{
+      font-size: inherit;
+      margin: inherit;
+      padding: inherit;
+    }
+  }
   input[type=password],
-  input[type=date],
-  input[type=datetime-local],
-  input[type=number],
-  input[type=tel],
-  textarea,
   select {
     display: block;
     margin-bottom: $default-fields-spacer;
@@ -201,13 +202,6 @@
   }
 
   input[type=text]:not([data-address='true']),
-  input[type=email],
-  input[type=password],
-  input[type=date],
-  input[type=number],
-  input[type=tel],
-  input[type=datetime-local],
-  textarea,
   select {
     border-radius: 4px;
     border: solid 1px $border-grey;
@@ -249,8 +243,8 @@
   input[type=date],
   input[type=number],
   input[type=datetime-local],
-  input[type=tel],
-  textarea {
+  textarea,
+  input[type=tel], {
     @media (max-width: $two-columns-breakpoint) {
       width: 100%;
     }
@@ -426,16 +420,6 @@
     color: $dark-grey;
   }
 
-  .datetime {
-    input[type=date] {
-      display: inline-block;
-    }
-
-    select {
-      display: inline-block;
-    }
-  }
-
   .header-subsection {
     font-size: 22px;
     color: $blue-france-500;
@@ -458,20 +442,6 @@
     }
   }
 
-  .siret-info {
-    margin-top: -$default-fields-spacer;
-    margin-bottom: $default-fields-spacer;
-    // Ensure the bottom-margin is not collapsed when the element is empty
-    min-height: 1px;
-  }
-
-  .rna-info {
-    margin-top: -$default-fields-spacer;
-    margin-bottom: $default-fields-spacer;
-    // Ensure the bottom-margin is not collapsed when the element is empty
-    min-height: 1px;
-  }
-
   .send-wrapper {
     display: flex;
     width: 100%;
diff --git a/app/components/dsfr/input_component.rb b/app/components/dsfr/input_component.rb
index 2717624701f..2898377eda3 100644
--- a/app/components/dsfr/input_component.rb
+++ b/app/components/dsfr/input_component.rb
@@ -1,4 +1,6 @@
 class Dsfr::InputComponent < ApplicationComponent
+  include Dsfr::InputErrorable
+
   delegate :object, to: :@form
   delegate :errors, to: :object
 
@@ -18,10 +20,10 @@ def initialize(form:, attribute:, input_type: :text_field, opts: {}, required: t
   # and and valid on input only if another input is invalid
   def input_group_opts
     opts = {
-      class: class_names('fr-input-group': true,
-                         'fr-password': password?,
-                         "fr-input-group--error": errors_on_attribute?,
-                         "fr-input-group--valid": !errors_on_attribute? && errors_on_another_attribute?)
+      class: class_names({
+        'fr-input-group': true,
+                         'fr-password': password?
+      }.merge(input_group_error_class_names))
     }
     if email?
       opts[:data] = { controller: 'email-input' }
@@ -33,38 +35,7 @@ def label_opts
     { class: class_names('fr-label': true, 'fr-password__label': password?) }
   end
 
-  def input_opts
-    @opts[:class] = class_names(map_array_to_hash_with_true(@opts[:class])
-                                  .merge('fr-password__input': password?,
-                                         'fr-input': true,
-                                         'fr-mb-0': true,
-                                         'fr-input--error': errors_on_attribute?))
-
-    if errors_on_attribute? || describedby?
-      @opts.deep_merge!(aria: {
-        describedby: describedby_id,
-        invalid: errors_on_attribute?
-      })
-    end
-
-    if @required
-      @opts[:required] = true
-    end
-
-    if email?
-      @opts.deep_merge!(data: {
-        action: "blur->email-input#checkEmail",
-        'email-input-target': 'input'
-      })
-    end
-    @opts
-  end
-
   # errors helpers
-  def errors_on_attribute?
-    errors.has_key?(attribute_or_rich_body)
-  end
-
   def error_messages
     errors.full_messages_for(attribute_or_rich_body)
   end
@@ -78,9 +49,6 @@ def label
     object.class.human_attribute_name(@attribute)
   end
 
-  def hint
-    I18n.t("activerecord.attributes.#{object.class.name.underscore}.hints.#{@attribute}")
-  end
 
   # kind of input helpers
   def password?
@@ -97,26 +65,5 @@ def show_password_id
 
   private
 
-  def hint?
-    I18n.exists?("activerecord.attributes.#{object.class.name.underscore}.hints.#{@attribute}")
-  end
-
-  def errors_on_another_attribute?
-    !errors.empty?
-  end
 
-  # lookup for edge case from `form.rich_text_area`
-  #   rich text uses _rich_#{attribute}, but it is saved on #{attribute}, as well as error messages
-  def attribute_or_rich_body
-    case @input_type
-    when :rich_text_area
-      @attribute.to_s.sub(/\Arich_/, '').to_sym
-    else
-      @attribute
-    end
-  end
-
-  def map_array_to_hash_with_true(array_or_string_or_nil)
-    Array(array_or_string_or_nil).to_h { [_1, true] }
-  end
 end
diff --git a/app/components/dsfr/input_errorable.rb b/app/components/dsfr/input_errorable.rb
new file mode 100644
index 00000000000..024d5e8adb4
--- /dev/null
+++ b/app/components/dsfr/input_errorable.rb
@@ -0,0 +1,106 @@
+module Dsfr
+  module InputErrorable
+    extend ActiveSupport::Concern
+    included do
+      delegate :object, to: :@form
+      delegate :errors, to: :object
+
+      # lookup for edge case from `form.rich_text_area`
+      #   rich text uses _rich_#{attribute}, but it is saved on #{attribute}, as well as error messages
+      def attribute_or_rich_body
+        case @input_type
+        when :rich_text_area
+          @attribute.to_s.sub(/\Arich_/, '').to_sym
+        else
+          @attribute
+        end
+      end
+
+      def input_group_error_class_names
+        {
+          "fr-input-group--error": errors_on_attribute?,
+          "fr-input-group--valid": !errors_on_attribute? && errors_on_another_attribute?
+        }
+      end
+
+      def input_error_class_names
+        { 'fr-input--error': errors_on_attribute? }
+      end
+
+      def input_error_opts
+        {
+          aria: {
+            describedby: describedby_id,
+            invalid: errors_on_attribute?
+          }
+        }
+      end
+
+      def input_opts(other_opts = {})
+        @opts = @opts.deep_merge!(other_opts)
+        @opts[:class] = class_names(map_array_to_hash_with_true(@opts[:class])
+                                      .merge({
+                                        'fr-password__input': password?,
+                                             'fr-input': true,
+                                             'fr-mb-0': true
+                                      }.merge(input_error_class_names)))
+
+        if errors_on_attribute?
+          @opts.deep_merge!(aria: {
+            describedby: describedby_id,
+            invalid: errors_on_attribute?
+          })
+        end
+
+        if @required
+          @opts[:required] = true
+        end
+
+        if email?
+          @opts.deep_merge!(data: {
+            action: "blur->email-input#checkEmail",
+            'email-input-target': 'input'
+          })
+        end
+        @opts
+      end
+
+      def describedby_id
+        dom_id(@champ, :error_messages)
+      end
+
+      def errors_on_another_attribute?
+        !errors.empty?
+      end
+
+      def errors_on_attribute?
+        errors.has_key?(attribute_or_rich_body)
+      end
+
+      # errors helpers
+      def error_messages
+        errors.full_messages_for(attribute_or_rich_body)
+      end
+
+      def map_array_to_hash_with_true(array_or_string_or_nil)
+        Array(array_or_string_or_nil).to_h { [_1, true] }
+      end
+
+      def hint
+        I18n.t("activerecord.attributes.#{object.class.name.underscore}.hints.#{@attribute}")
+      end
+
+      def password?
+        false
+      end
+
+      def email?
+        false
+      end
+
+      def hint?
+        I18n.exists?("activerecord.attributes.#{object.class.name.underscore}.hints.#{@attribute}")
+      end
+    end
+  end
+end
diff --git a/app/components/editable_champ/champ_label_component.rb b/app/components/editable_champ/champ_label_component.rb
index de0a6fea30b..967a95584d0 100644
--- a/app/components/editable_champ/champ_label_component.rb
+++ b/app/components/editable_champ/champ_label_component.rb
@@ -1,5 +1,8 @@
 class EditableChamp::ChampLabelComponent < ApplicationComponent
+  include Dsfr::InputErrorable
+
   def initialize(form:, champ:, seen_at: nil)
     @form, @champ, @seen_at = form, champ, seen_at
+    @attribute = :value
   end
 end
diff --git a/app/components/editable_champ/champ_label_component/champ_label_component.html.haml b/app/components/editable_champ/champ_label_component/champ_label_component.html.haml
index d860df31405..eda623420cc 100644
--- a/app/components/editable_champ/champ_label_component/champ_label_component.html.haml
+++ b/app/components/editable_champ/champ_label_component/champ_label_component.html.haml
@@ -1,10 +1,9 @@
 = # we do this trick because some html elements should use 'label' and some should be plain paragraphs
 - if @champ.html_label?
-  = @form.label @champ.main_value_name, id: @champ.labelledby_id, for: @champ.input_id do
-    - render EditableChamp::ChampLabelContentComponent.new champ: @champ, seen_at: @seen_at
+  = @form.label @champ.main_value_name, id: @champ.labelledby_id, for: @champ.input_id, class: 'fr-label' do
+    - render EditableChamp::ChampLabelContentComponent.new form: @form, champ: @champ, seen_at: @seen_at
 - else
-  .form-label.mb-4{ id: @champ.labelledby_id }
-    = render EditableChamp::ChampLabelContentComponent.new champ: @champ, seen_at: @seen_at
+  .fr-label.mb-4{ id: @champ.labelledby_id }
+    = render EditableChamp::ChampLabelContentComponent.new form: @form, champ: @champ, seen_at: @seen_at
+
 
-- if @champ.description.present?
-  .notice{ id: @champ.describedby_id }= render SimpleFormatComponent.new(@champ.description, allow_a: true)
diff --git a/app/components/editable_champ/champ_label_content_component.rb b/app/components/editable_champ/champ_label_content_component.rb
index 60025939e67..21069fe98f0 100644
--- a/app/components/editable_champ/champ_label_content_component.rb
+++ b/app/components/editable_champ/champ_label_content_component.rb
@@ -1,8 +1,10 @@
 class EditableChamp::ChampLabelContentComponent < ApplicationComponent
   include ApplicationHelper
+  include Dsfr::InputErrorable
 
-  def initialize(champ:, seen_at: nil)
-    @champ, @seen_at = champ, seen_at
+  def initialize(form:, champ:, seen_at: nil)
+    @form, @champ, @seen_at = form, champ, seen_at
+    @attribute = :value
   end
 
   def highlight_if_unseen_class
diff --git a/app/components/editable_champ/champ_label_content_component/champ_label_content_component.en.yml b/app/components/editable_champ/champ_label_content_component/champ_label_content_component.en.yml
index 9d642dd7263..fbbc60b2e67 100644
--- a/app/components/editable_champ/champ_label_content_component/champ_label_content_component.en.yml
+++ b/app/components/editable_champ/champ_label_content_component/champ_label_content_component.en.yml
@@ -4,3 +4,5 @@ en:
   modified_at: "modified on %{datetime}"
   check_content_rebased: The type of this field or its description has been modified by the administration. Check its content.
   optional_champ: (optional)
+  recommended_size: The recommended maximum size is %{size} characters.
+  titre_identite_notice: National identity card (front side only), passport, residency permit or other proof of identity.
diff --git a/app/components/editable_champ/champ_label_content_component/champ_label_content_component.fr.yml b/app/components/editable_champ/champ_label_content_component/champ_label_content_component.fr.yml
index 0201f614036..d129bfa1edc 100644
--- a/app/components/editable_champ/champ_label_content_component/champ_label_content_component.fr.yml
+++ b/app/components/editable_champ/champ_label_content_component/champ_label_content_component.fr.yml
@@ -4,3 +4,5 @@ fr:
   modified_at: "modifié le %{datetime}"
   check_content_rebased: Le type de ce champ ou sa description ont été modifiés par l'administration. Vérifier son contenu.
   optional_champ: (facultatif)
+  recommended_size: La taille maximale conseillée est de %{size} caractères.
+  titre_identite_notice: Carte nationale d’identité (uniquement le recto), passeport, titre de séjour ou autre justificatif d’identité.
diff --git a/app/components/editable_champ/champ_label_content_component/champ_label_content_component.html.haml b/app/components/editable_champ/champ_label_content_component/champ_label_content_component.html.haml
index d5a578b42ec..42732e3279b 100644
--- a/app/components/editable_champ/champ_label_content_component/champ_label_content_component.html.haml
+++ b/app/components/editable_champ/champ_label_content_component/champ_label_content_component.html.haml
@@ -16,3 +16,15 @@
 - if @champ.rebased_at.present? && @champ.rebased_at > (@seen_at || @champ.updated_at) && current_user.owns_or_invite?(@champ.dossier)
   %span.updated-at.highlighted
     = t('.check_content_rebased')
+
+- if @champ.titre_identite?
+  %span.fr-hint-text= t('.titre_identite_notice')
+
+- if hint?
+  %span.fr-hint-text= hint
+
+- if @champ.description.present?
+  %span.fr-hint-text{ id: @champ.describedby_id }= render SimpleFormatComponent.new(@champ.description, allow_a: true)
+
+- if @champ.textarea?
+  %span.sr-only= t('.recommended_size', size: @champ.character_limit_base)
diff --git a/app/components/editable_champ/date_component/date_component.html.haml b/app/components/editable_champ/date_component/date_component.html.haml
index 4e91abc009d..e6d6b332ce2 100644
--- a/app/components/editable_champ/date_component/date_component.html.haml
+++ b/app/components/editable_champ/date_component/date_component.html.haml
@@ -1,7 +1,6 @@
 = @form.date_field :value,
-  id: @champ.input_id,
+  input_opts(id: @champ.input_id,
   aria: { describedby: @champ.describedby_id },
   value: @champ.value,
   required: @champ.required?,
-  placeholder: 'aaaa-mm-jj',
-  class: "width-33-desktop"
+  placeholder: 'aaaa-mm-jj', class: "width-33-desktop")
diff --git a/app/components/editable_champ/datetime_component/datetime_component.html.haml b/app/components/editable_champ/datetime_component/datetime_component.html.haml
index 5f0b4dab718..9b6931e72b6 100644
--- a/app/components/editable_champ/datetime_component/datetime_component.html.haml
+++ b/app/components/editable_champ/datetime_component/datetime_component.html.haml
@@ -1,2 +1 @@
-.datetime
-  = @form.datetime_field(:value, value: formatted_value_for_datetime_locale, id: @champ.input_id, aria: { describedby: @champ.describedby_id }, data: { controller: 'datetime' })
+= @form.datetime_field(:value, input_opts(value: formatted_value_for_datetime_locale, id: @champ.input_id, aria: { describedby: @champ.describedby_id }, data: { controller: 'datetime' }))
diff --git a/app/components/editable_champ/decimal_number_component/decimal_number_component.html.haml b/app/components/editable_champ/decimal_number_component/decimal_number_component.html.haml
index f0cd272a5cd..0c9c6c0d70c 100644
--- a/app/components/editable_champ/decimal_number_component/decimal_number_component.html.haml
+++ b/app/components/editable_champ/decimal_number_component/decimal_number_component.html.haml
@@ -1,6 +1 @@
-= @form.number_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  step: :any,
-  placeholder: "3.14",
-  required: @champ.required?
+= @form.number_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, step: :any, placeholder: "3.14", required: @champ.required?))
diff --git a/app/components/editable_champ/dossier_link_component/dossier_link_component.html.haml b/app/components/editable_champ/dossier_link_component/dossier_link_component.html.haml
index 3e4169f40a8..2db3bd8057c 100644
--- a/app/components/editable_champ/dossier_link_component/dossier_link_component.html.haml
+++ b/app/components/editable_champ/dossier_link_component/dossier_link_component.html.haml
@@ -1,18 +1,8 @@
-.dossier-link
-  = @form.text_field :value,
-    id: @champ.input_id,
-    aria: { describedby: @champ.describedby_id },
-    inputmode: :numeric,
-    min: 1,
-    pattern: "[0-9]{1,12}",
-    placeholder: "Numéro de dossier",
-    autocomplete: 'off',
-    required: @champ.required?,
-    class: "width-33-desktop #{@champ.blank? ? '' : 'small-margin'}"
+= @form.text_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, inputmode: :numeric, min: 1, pattern: "[0-9]{1,12}", placeholder: "Numéro de dossier", autocomplete: 'off', required: @champ.required?, class: "width-33-desktop #{@champ.blank? ? '' : 'small-margin'}"))
 
-  - if !@champ.blank?
-    - if dossier.blank?
-      .fr-error-text.fr-mb-4w
-        = t('.not_found')
-    - else
-      .fr-info-text.fr-mb-4w= sanitize(dossier.text_summary)
+- if !@champ.blank?
+  - if dossier.blank?
+    .fr-error-text.fr-mb-4w
+      = t('.not_found')
+  - else
+    .fr-info-text.fr-mb-4w= sanitize(dossier.text_summary)
diff --git a/app/components/editable_champ/editable_champ_base_component.rb b/app/components/editable_champ/editable_champ_base_component.rb
index 08408a95cff..21b0d49d4ad 100644
--- a/app/components/editable_champ/editable_champ_base_component.rb
+++ b/app/components/editable_champ/editable_champ_base_component.rb
@@ -1,5 +1,8 @@
 class EditableChamp::EditableChampBaseComponent < ApplicationComponent
-  def initialize(form:, champ:, seen_at: nil)
-    @form, @champ, @seen_at = form, champ, seen_at
+  include Dsfr::InputErrorable
+
+  def initialize(form:, champ:, seen_at: nil, opts: {})
+    @form, @champ, @seen_at, @opts = form, champ, seen_at, opts
+    @attribute = :value
   end
 end
diff --git a/app/components/editable_champ/editable_champ_component.rb b/app/components/editable_champ/editable_champ_component.rb
index f2051df8a7f..c12ae9a7a8c 100644
--- a/app/components/editable_champ/editable_champ_component.rb
+++ b/app/components/editable_champ/editable_champ_component.rb
@@ -1,6 +1,9 @@
 class EditableChamp::EditableChampComponent < ApplicationComponent
+  include Dsfr::InputErrorable
+
   def initialize(form:, champ:, seen_at: nil)
     @form, @champ, @seen_at = form, champ, seen_at
+    @attribute = :value
   end
 
   private
@@ -21,8 +24,12 @@ def component_class
   def html_options
     {
       class: class_names(
-        "editable-champ-#{@champ.type_champ}": true,
-        "hidden": !@champ.visible?
+        {
+          'editable-champ': true,
+          "editable-champ-#{@champ.type_champ}": true,
+          "hidden": !@champ.visible?,
+          "fr-input-group": true,
+        }.merge(input_group_error_class_names)
       ),
       id: @champ.input_group_id,
       data: { controller: stimulus_controller, **data_dependent_conditions }
diff --git a/app/components/editable_champ/editable_champ_component/editable_champ_component.en.yml b/app/components/editable_champ/editable_champ_component/editable_champ_component.en.yml
index 48cb6286e8b..e944e6ca508 100644
--- a/app/components/editable_champ/editable_champ_component/editable_champ_component.en.yml
+++ b/app/components/editable_champ/editable_champ_component/editable_champ_component.en.yml
@@ -1,4 +1,4 @@
 ---
 en:
   titre_identite_notice: National identity card (front side only), passport, residency permit or other proof of identity.
-  datetime_notice: "Expected format : dd/mm/yyyy hh:mm"
+
diff --git a/app/components/editable_champ/editable_champ_component/editable_champ_component.fr.yml b/app/components/editable_champ/editable_champ_component/editable_champ_component.fr.yml
index c7e4f5d7e30..dc1731448ad 100644
--- a/app/components/editable_champ/editable_champ_component/editable_champ_component.fr.yml
+++ b/app/components/editable_champ/editable_champ_component/editable_champ_component.fr.yml
@@ -1,4 +1,3 @@
 ---
 fr:
   titre_identite_notice: Carte nationale d’identité (uniquement le recto), passeport, titre de séjour ou autre justificatif d’identité.
-  datetime_notice: "Format attendu : jj/mm/aaaa hh:mm"
diff --git a/app/components/editable_champ/editable_champ_component/editable_champ_component.html.haml b/app/components/editable_champ/editable_champ_component/editable_champ_component.html.haml
index c73824c8156..5fba33f870b 100644
--- a/app/components/editable_champ/editable_champ_component/editable_champ_component.html.haml
+++ b/app/components/editable_champ/editable_champ_component/editable_champ_component.html.haml
@@ -1,10 +1,15 @@
-.editable-champ{ html_options }
+= content_tag(:div, html_options) do
   - if has_label?(@champ)
     = render EditableChamp::ChampLabelComponent.new form: @form, champ: @champ, seen_at: @seen_at
-  - if @champ.titre_identite?
-    %p.notice= t('.titre_identite_notice')
-  - elsif @champ.datetime?
-    %p.notice= t('.datetime_notice')
+  = render component_class.new(form: @form, champ: @champ, seen_at: @seen_at)
+
+  - if errors_on_attribute?
+    - if error_messages.size == 1
+      %p.fr-error-text{ id: describedby_id }= error_messages.first
+    - else
+      .fr-error-text{ id: describedby_id }
+        %ul.list-style-type-none.fr-pl-0
+          - error_messages.map do |error_message|
+            %li= error_message
 
   = @form.hidden_field :id, value: @champ.id
-  = render component_class.new(form: @form, champ: @champ, seen_at: @seen_at)
diff --git a/app/components/editable_champ/email_component.rb b/app/components/editable_champ/email_component.rb
index fbc0774e2a4..b7dbcddb2c4 100644
--- a/app/components/editable_champ/email_component.rb
+++ b/app/components/editable_champ/email_component.rb
@@ -1,2 +1,5 @@
 class EditableChamp::EmailComponent < EditableChamp::EditableChampBaseComponent
+  def email?
+    true
+  end
 end
diff --git a/app/components/editable_champ/email_component/email_component.html.haml b/app/components/editable_champ/email_component/email_component.html.haml
index 152253c70f8..9f77ce08abe 100644
--- a/app/components/editable_champ/email_component/email_component.html.haml
+++ b/app/components/editable_champ/email_component/email_component.html.haml
@@ -1,5 +1 @@
-= @form.email_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  placeholder: t(".placeholder"),
-  required: @champ.required?
+= @form.email_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, placeholder: t(".placeholder"), required: @champ.required?))
diff --git a/app/components/editable_champ/iban_component/iban_component.html.haml b/app/components/editable_champ/iban_component/iban_component.html.haml
index 151bfaa562e..3c2bc8425d6 100644
--- a/app/components/editable_champ/iban_component/iban_component.html.haml
+++ b/app/components/editable_champ/iban_component/iban_component.html.haml
@@ -1,8 +1 @@
-= @form.text_field :value,
-  id: @champ.input_id,
-  placeholder: t(".placeholder"),
-  required: @champ.required?,
-  aria: { describedby: @champ.describedby_id },
-  data: { controller: 'format', format: 'iban' },
-  class: "width-66-desktop",
-  maxlength: 34 + 9 # count space separator of 4 digits-groups
+= @form.text_field(:value, input_opts(id: @champ.input_id, placeholder: t(".placeholder"), required: @champ.required?, aria: { describedby: @champ.describedby_id }, data: { controller: 'format', format: 'iban' }, class: "width-66-desktop", maxlength: 34 + 9)) # count space separator of 4 digits-groups
diff --git a/app/components/editable_champ/integer_number_component/integer_number_component.html.haml b/app/components/editable_champ/integer_number_component/integer_number_component.html.haml
index cb30df24dae..fc2680744fe 100644
--- a/app/components/editable_champ/integer_number_component/integer_number_component.html.haml
+++ b/app/components/editable_champ/integer_number_component/integer_number_component.html.haml
@@ -1,5 +1 @@
-= @form.number_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  placeholder: 5,
-  required: @champ.required?
+= @form.number_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, placeholder: 5, required: @champ.required?))
diff --git a/app/components/editable_champ/number_component/number_component.html.haml b/app/components/editable_champ/number_component/number_component.html.haml
index 8ee884bcc20..4da3486d15e 100644
--- a/app/components/editable_champ/number_component/number_component.html.haml
+++ b/app/components/editable_champ/number_component/number_component.html.haml
@@ -1,5 +1 @@
-= @form.number_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  placeholder: @champ.libelle,
-  required: @champ.required?
+= @form.number_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, placeholder: @champ.libelle, required: @champ.required?))
diff --git a/app/components/editable_champ/phone_component/phone_component.html.haml b/app/components/editable_champ/phone_component/phone_component.html.haml
index 46258c29853..d9b0797839c 100644
--- a/app/components/editable_champ/phone_component/phone_component.html.haml
+++ b/app/components/editable_champ/phone_component/phone_component.html.haml
@@ -1,9 +1,4 @@
 -# Allowed @formats:
 -# very light validation is made client-side
 -# stronger validation is made server-side
-= @form.phone_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  placeholder: t(".placeholder"),
-  required: @champ.required?,
-  pattern: "[^a-z^A-Z]+"
+= @form.phone_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, placeholder: t(".placeholder"), required: @champ.required?, pattern: "[^a-z^A-Z]+"))
diff --git a/app/components/editable_champ/rna_component/rna_component.html.haml b/app/components/editable_champ/rna_component/rna_component.html.haml
index ed679038332..b8684093be4 100644
--- a/app/components/editable_champ/rna_component/rna_component.html.haml
+++ b/app/components/editable_champ/rna_component/rna_component.html.haml
@@ -1,12 +1,3 @@
-= @form.text_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  placeholder: t(".placeholder"),
-  data: { controller: 'turbo-input', turbo_input_load_on_connect_value: @champ.prefilled? && @champ.value.present? && @champ.data.blank?, turbo_input_url_value: champs_rna_path(@champ.id) },
-  required: @champ.required?,
-  pattern: "W[0-9]{9}",
-  title: t(".title"),
-  class: "width-33-desktop",
-  maxlength: 10
+= @form.text_field(:value, input_opts( id: @champ.input_id, aria: { describedby: @champ.describedby_id }, placeholder: t(".placeholder"), data: { controller: 'turbo-input', turbo_input_load_on_connect_value: @champ.prefilled? && @champ.value.present? && @champ.data.blank?, turbo_input_url_value: champs_rna_path(@champ.id) }, required: @champ.required?, pattern: "W[0-9]{9}", title: t(".title"), class: "width-33-desktop", maxlength: 10))
 .rna-info{ id: dom_id(@champ, :rna_info) }
   = render 'shared/champs/rna/association', champ: @champ, error: nil
diff --git a/app/components/editable_champ/siret_component/siret_component.html.haml b/app/components/editable_champ/siret_component/siret_component.html.haml
index 1970d85cc91..fb39ad011da 100644
--- a/app/components/editable_champ/siret_component/siret_component.html.haml
+++ b/app/components/editable_champ/siret_component/siret_component.html.haml
@@ -1,13 +1,4 @@
-= @form.text_field :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  placeholder: t(".placeholder"),
-  data: { controller: 'turbo-input', turbo_input_load_on_connect_value: @champ.prefilled? && @champ.value.present? && @champ.etablissement.blank?, turbo_input_url_value: champs_siret_path(@champ.id) },
-  required: @champ.required?,
-  pattern: "[0-9]{14}",
-  title: t(".title"),
-  class: "width-33-desktop",
-  maxlength: 14
+= @form.text_field(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, placeholder: t(".placeholder"), data: { controller: 'turbo-input', turbo_input_load_on_connect_value: @champ.prefilled? && @champ.value.present? && @champ.etablissement.blank?, turbo_input_url_value: champs_siret_path(@champ.id) }, required: @champ.required?, pattern: "[0-9]{14}", title: t(".title"), class: "width-33-desktop", maxlength: 14))
 .spinner.right.hidden
 .siret-info{ id: dom_id(@champ, :siret_info) }
   - if @champ.etablissement.present?
diff --git a/app/components/editable_champ/text_component/text_component.html.haml b/app/components/editable_champ/text_component/text_component.html.haml
index 326166a21bd..e88fc333281 100644
--- a/app/components/editable_champ/text_component/text_component.html.haml
+++ b/app/components/editable_champ/text_component/text_component.html.haml
@@ -1,4 +1 @@
-= @form.text_field :value,
-  id: @champ.input_id,
-  required: @champ.required?,
-  aria: { describedby: @champ.describedby_id }
+= @form.text_field(:value, input_opts(id: @champ.input_id, required: @champ.required?, aria: { describedby: @champ.describedby_id }))
diff --git a/app/components/editable_champ/textarea_component/textarea_component.en.yml b/app/components/editable_champ/textarea_component/textarea_component.en.yml
index 18b61d2a0a3..8e9b499018a 100644
--- a/app/components/editable_champ/textarea_component/textarea_component.en.yml
+++ b/app/components/editable_champ/textarea_component/textarea_component.en.yml
@@ -1,4 +1,3 @@
 en:
   remaining_characters: You have %{remaining_words} characters remaining.
   excess_characters: You have %{excess_words} characters too many.
-  recommended_size: The recommended maximum size is %{size} characters.
diff --git a/app/components/editable_champ/textarea_component/textarea_component.fr.yml b/app/components/editable_champ/textarea_component/textarea_component.fr.yml
index e9d5a7a1227..fa8fafdc1ec 100644
--- a/app/components/editable_champ/textarea_component/textarea_component.fr.yml
+++ b/app/components/editable_champ/textarea_component/textarea_component.fr.yml
@@ -1,4 +1,3 @@
 fr:
   remaining_characters: Il vous reste %{remaining_words} caractères.
   excess_characters: Vous avez dépassé la taille conseillée de %{excess_words} caractères. Réduire le nombre de caractères.
-  recommended_size: La taille maximale conseillée est de %{size} caractères.
diff --git a/app/components/editable_champ/textarea_component/textarea_component.html.haml b/app/components/editable_champ/textarea_component/textarea_component.html.haml
index 8a18048ed0f..e3054de3357 100644
--- a/app/components/editable_champ/textarea_component/textarea_component.html.haml
+++ b/app/components/editable_champ/textarea_component/textarea_component.html.haml
@@ -1,16 +1,9 @@
-%span.sr-only= t('.recommended_size', size: @champ.character_limit_base)
-
-~ @form.text_area :value,
-  id: @champ.input_id,
-  aria: { describedby: @champ.describedby_id },
-  rows: 6,
-  required: @champ.required?,
-  value: html_to_string(@champ.value)
+~ @form.text_area(:value, input_opts(id: @champ.input_id, aria: { describedby: @champ.describedby_id }, rows: 6, required: @champ.required?, value: html_to_string(@champ.value)))
 
 - if @champ.character_limit_info?
   %span.fr-icon-information-fill.fr-text-default--info.characters-count
     = t('.remaining_characters', remaining_words: @champ.remaining_characters)
 
 - if @champ.character_limit_warning?
-  %span.fr-icon-warning-fill.fr-text-default--warning.characters-count
+  %p.fr-icon-warning-fill.fr-text-default--warning.characters-count
     = t('.excess_characters', excess_words: @champ.excess_characters)
diff --git a/app/models/champ.rb b/app/models/champ.rb
index 00211b1daa6..a1cd14a4491 100644
--- a/app/models/champ.rb
+++ b/app/models/champ.rb
@@ -57,6 +57,7 @@ class Champ < ApplicationRecord
     :dossier_link?,
     :departement?,
     :region?,
+    :textarea?,
     :titre_identite?,
     :header_section?,
     :checkbox?,
diff --git a/app/views/shared/champs/rna/_association.html.haml b/app/views/shared/champs/rna/_association.html.haml
index 572a214027e..f95ac29b6a9 100644
--- a/app/views/shared/champs/rna/_association.html.haml
+++ b/app/views/shared/champs/rna/_association.html.haml
@@ -1,11 +1,11 @@
 - case error
 - when :invalid
-  %p.pt-1
+  %p.fr-pt-1.fr-pb-0
     Le numéro RNA doit commencer par un W majuscule suivi de 9 chiffres
 - when :not_found
-  %p.pt-1= t('.not_found')
+  %p.fr-pt-1.fr-pb-0= t('.not_found')
 - when :network_error
-  %p.pt-1= t('.network_error')
+  %p.fr-pt-1.fr-pb-0= t('.network_error')
 - else
   - if champ.value.present?
-    %p.pt-1= t('.data_fetched', title: champ.title)
+    %p.fr-pt-1.fr-pb-0= t('.data_fetched', title: champ.title)
diff --git a/config/locales/models/champs/datetime_champ/en.yml b/config/locales/models/champs/datetime_champ/en.yml
new file mode 100644
index 00000000000..eb0b92533e3
--- /dev/null
+++ b/config/locales/models/champs/datetime_champ/en.yml
@@ -0,0 +1,7 @@
+en:
+  activerecord:
+    attributes:
+      champs/datetime_champ:
+          hints:
+            value: "Expected format : dd/mm/yyyy hh:mm"
+
diff --git a/config/locales/models/champs/datetime_champ/fr.yml b/config/locales/models/champs/datetime_champ/fr.yml
new file mode 100644
index 00000000000..1035c03d8f7
--- /dev/null
+++ b/config/locales/models/champs/datetime_champ/fr.yml
@@ -0,0 +1,7 @@
+fr:
+  activerecord:
+    attributes:
+      champs/datetime_champ:
+          hints:
+            value: "Format attendu : jj/mm/aaaa hh:mm"
+