diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f33954ca61..9e2c14e703 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -134,7 +134,14 @@ jobs:
           path: node_modules
       - name: Install JS dependencies
         run: yarn install
+      - name: Cache precompiled assets
+        id: cache-precompiled-assets
+        uses: actions/cache@v4
+        with:
+          key: assets-${{ hashFiles('yarn.lock', 'app/javascript/**') }}
+          path: app/assets/builds
       - name: Precompile assets
+        if: steps.cache-precompiled-assets.outputs.cache-hit != 'true' # Skip if cache was restored
         run: yarn run build
       - name: Prepare runtime log cache key
         run: ls spec/**/*.rb > tmp/spec_files.txt
@@ -202,7 +209,14 @@ jobs:
           path: node_modules
       - name: Install JS dependencies
         run: yarn install
+      - name: Cache precompiled assets
+        id: cache-precompiled-assets
+        uses: actions/cache@v4
+        with:
+          key: assets-${{ hashFiles('yarn.lock', 'app/javascript/**') }}
+          path: app/assets/builds
       - name: Precompile assets
+        if: steps.cache-precompiled-assets.outputs.cache-hit != 'true' # Skip if cache was restored
         run: yarn run build
       - name: Prepare runtime log cache key
         run: "ls spec/features/${{ matrix.dirname }}/**/*.rb > tmp/feature_spec_${{ matrix.dirname }}_files.txt"
diff --git a/app/jobs/create_crisp_ticket_job.rb b/app/jobs/create_crisp_ticket_job.rb
index 98f929730b..6f4ee8768f 100644
--- a/app/jobs/create_crisp_ticket_job.rb
+++ b/app/jobs/create_crisp_ticket_job.rb
@@ -32,6 +32,9 @@ def perform(nickname:, email:, phone:, subject:, message:, role:, domain:)
           domain,
         ],
         subject:,
+        device: {
+          locales: ["fr"],
+        },
       }
     )
   end
diff --git a/app/services/merge_users_service.rb b/app/services/merge_users_service.rb
index 71206fa72d..cc80a12fa0 100644
--- a/app/services/merge_users_service.rb
+++ b/app/services/merge_users_service.rb
@@ -25,8 +25,8 @@ def merge_annotations
     current_territory = @organisation.territory
 
     annotation_to_merge = @user_to_merge.annotations.find_by(territory: current_territory)
-    @user_target.annotate!(annotation_to_merge.content, territory: current_territory)
-    annotation_to_merge.destroy!
+    @user_target.annotate!(annotation_to_merge&.content, territory: current_territory)
+    annotation_to_merge&.destroy!
   end
 
   def merge_user_attributes
diff --git a/config/anonymizer.yml b/config/anonymizer.yml
index a09e2e740b..de20dd9005 100644
--- a/config/anonymizer.yml
+++ b/config/anonymizer.yml
@@ -49,7 +49,6 @@ tables:
       - city_name
       - case_number
       - logement
-      - notes
       - ants_pre_demande_number
       - franceconnect_openid_sub
       - encrypted_password
diff --git a/db/migrate/20250303104258_remove_users_notes.rb b/db/migrate/20250303104258_remove_users_notes.rb
new file mode 100644
index 0000000000..04d82b4054
--- /dev/null
+++ b/db/migrate/20250303104258_remove_users_notes.rb
@@ -0,0 +1,7 @@
+class RemoveUsersNotes < ActiveRecord::Migration[7.1]
+  def change
+    safety_assured do
+      remove_column :users, :notes, :text
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 485ee60c67..19b00269b9 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2025_02_27_165927) do
+ActiveRecord::Schema[7.1].define(version: 2025_03_03_104258) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_stat_statements"
   enable_extension "pgcrypto"
@@ -795,7 +795,6 @@
     t.string "case_number"
     t.string "address_details"
     t.integer "logement"
-    t.text "notes"
     t.string "ants_pre_demande_number"
     t.string "rdv_invitation_token"
     t.virtual "text_search_terms", type: :tsvector, as: "(((((setweight(to_tsvector('simple'::regconfig, translate(lower((COALESCE(last_name, ''::character varying))::text), 'àâäéèêëïîôöùûüÿç'::text, 'aaaeeeeiioouuuyc'::text)), 'A'::\"char\") || setweight(to_tsvector('simple'::regconfig, translate(lower((COALESCE(first_name, ''::character varying))::text), 'àâäéèêëïîôöùûüÿç'::text, 'aaaeeeeiioouuuyc'::text)), 'B'::\"char\")) || setweight(to_tsvector('simple'::regconfig, translate(lower((COALESCE(birth_name, ''::character varying))::text), 'àâäéèêëïîôöùûüÿç'::text, 'aaaeeeeiioouuuyc'::text)), 'C'::\"char\")) || setweight(to_tsvector('simple'::regconfig, (COALESCE(email, ''::character varying))::text), 'D'::\"char\")) || setweight(to_tsvector('simple'::regconfig, (COALESCE(phone_number_formatted, ''::character varying))::text), 'D'::\"char\")) || setweight(to_tsvector('simple'::regconfig, COALESCE((id)::text, ''::text)), 'D'::\"char\"))", stored: true
diff --git a/spec/services/merge_users_service_spec.rb b/spec/services/merge_users_service_spec.rb
index 444fed6f72..3d3f4947ae 100644
--- a/spec/services/merge_users_service_spec.rb
+++ b/spec/services/merge_users_service_spec.rb
@@ -4,8 +4,8 @@
   # defaults
   let!(:organisation) { create(:organisation) }
   let(:attributes_to_merge) { [] }
-  let(:user_target) { create(:user, organisations: [organisation]) }
-  let(:user_to_merge) { create(:user, organisations: [organisation]) }
+  let!(:user_target) { create(:user, organisations: [organisation]) }
+  let!(:user_to_merge) { create(:user, organisations: [organisation]) }
 
   context "simply merge first_name" do
     let(:user_target) { create(:user, first_name: "Jean", last_name: "PAUL", email: "jean@paul.fr", organisations: [organisation]) }
@@ -179,8 +179,8 @@
     let!(:organisation2) { create(:organisation) }
     let!(:agent1) { create(:agent, basic_role_in_organisations: [organisation]) }
     let!(:agent2) { create(:agent, basic_role_in_organisations: [organisation2]) }
-    let(:user_target) { create(:user, referent_agents: [agent1], organisations: [organisation]) }
-    let(:user_to_merge) { create(:user, referent_agents: [agent2], organisations: [organisation, organisation2]) }
+    let!(:user_target) { create(:user, referent_agents: [agent1], organisations: [organisation]) }
+    let!(:user_to_merge) { create(:user, referent_agents: [agent2], organisations: [organisation, organisation2]) }
 
     it "does not move the agent from the other orga anything" do
       perform
@@ -249,6 +249,46 @@
     end
   end
 
+  context "only user to merge has an annotation" do
+    before do
+      user_to_merge.annotations.create!(territory: organisation.territory, content: "user to merge")
+    end
+
+    it "deletes the annotation along with the merged user by default" do
+      expect { perform }.to change(Annotation, :count).by(-1).and(change(User, :count).by(-1))
+      expect(user_target.annotations.find_by(territory: organisation.territory)).to be_nil
+    end
+
+    context "when merging annotations" do
+      let(:attributes_to_merge) { [:annotation_content] }
+
+      it "moves the annotation to the target user" do
+        perform
+        expect(user_target.annotation_for(organisation.territory)).to eq("user to merge")
+      end
+    end
+  end
+
+  context "only target user has an annotation" do
+    before do
+      user_target.annotations.create!(territory: organisation.territory, content: "target user")
+    end
+
+    it "keeps the annotation by default" do
+      expect { perform }.not_to change(Annotation, :count)
+      expect(user_target.annotation_for(organisation.territory)).to eq("target user")
+    end
+
+    context "when merging annotations" do
+      let(:attributes_to_merge) { [:annotation_content] }
+
+      it "deletes the annotation of the target user, to replace it with with the absence of annotation of the user to merge" do
+        expect { perform }.to change(Annotation, :count).by(-1)
+        expect(user_target.annotations.find_by(territory: organisation.territory)).to be_nil
+      end
+    end
+  end
+
   context "when one user is connected by FranceConnect" do
     it "keep FranceConnect attributes when merged user logged once with franceconnect" do
       user_to_merge = create(:user, logged_once_with_franceconnect: true, franceconnect_openid_sub: "unechainedecharacteres", organisations: [organisation])