diff --git a/python/apps/taiga/src/taiga/stories/stories/api/__init__.py b/python/apps/taiga/src/taiga/stories/stories/api/__init__.py
index cf5543c59..b6c1a33ee 100644
--- a/python/apps/taiga/src/taiga/stories/stories/api/__init__.py
+++ b/python/apps/taiga/src/taiga/stories/stories/api/__init__.py
@@ -11,7 +11,6 @@
 from starlette.responses import Response
 from taiga.base.api import AuthRequest, PaginationQuery, responses, set_pagination
 from taiga.base.api.permissions import check_permissions
-from taiga.base.utils.datetime import aware_utcnow
 from taiga.base.validators import B64UUID
 from taiga.exceptions import api as ex
 from taiga.exceptions.api.errors import ERROR_403, ERROR_404, ERROR_422
@@ -157,15 +156,12 @@ async def update_story(
 
     values = form.dict(exclude_unset=True)
     current_version = values.pop("version")
-    if "title" in values:
-        values["title_updated_by"] = request.user
-        values["title_updated_at"] = aware_utcnow()
-
-    if "description" in values:
-        values["description_updated_by"] = request.user
-        values["description_updated_at"] = aware_utcnow()
-
-    return await stories_services.update_story(story=story, current_version=current_version, values=values)
+    return await stories_services.update_story(
+        story=story,
+        updated_by=request.user,
+        current_version=current_version,
+        values=values,
+    )
 
 
 ################################################
@@ -193,6 +189,7 @@ async def reorder_stories(
     await check_permissions(permissions=REORDER_STORIES, user=request.user, obj=workflow)
 
     return await stories_services.reorder_stories(
+        reordered_by=request.user,
         project=workflow.project,
         workflow=workflow,
         target_status_id=form.status,
diff --git a/python/apps/taiga/src/taiga/stories/stories/notifications/__init__.py b/python/apps/taiga/src/taiga/stories/stories/notifications/__init__.py
new file mode 100644
index 000000000..5c408cc76
--- /dev/null
+++ b/python/apps/taiga/src/taiga/stories/stories/notifications/__init__.py
@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# Copyright (c) 2023-present Kaleidos INC
+
+from taiga.notifications import services as notifications_services
+from taiga.stories.stories.models import Story
+from taiga.stories.stories.notifications.content import StoryStatusChangeNotificationContent
+from taiga.users.models import User
+
+STORIES_STATUS_CHANGE = "stories.status_change"
+
+
+async def notify_when_story_status_change(story: Story, status: str, emitted_by: User) -> None:
+    """
+    Emit notification when a story status changes
+    """
+    notified_users = {u async for u in story.assignees.all()}
+    if story.created_by:
+        notified_users.add(story.created_by)
+    notified_users.discard(emitted_by)
+
+    await notifications_services.notify_users(
+        type=STORIES_STATUS_CHANGE,
+        emitted_by=emitted_by,
+        notified_users=notified_users,
+        content=StoryStatusChangeNotificationContent(
+            projects=story.project,
+            story=story,
+            changed_by=emitted_by,
+            status=status,
+        ),
+    )
diff --git a/python/apps/taiga/src/taiga/stories/stories/notifications/content.py b/python/apps/taiga/src/taiga/stories/stories/notifications/content.py
new file mode 100644
index 000000000..322bb20e2
--- /dev/null
+++ b/python/apps/taiga/src/taiga/stories/stories/notifications/content.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# Copyright (c) 2023-present Kaleidos INC
+
+from taiga.base.serializers import BaseModel
+from taiga.projects.projects.serializers.nested import ProjectLinkNestedSerializer
+from taiga.stories.stories.serializers.nested import StoryNestedSerializer
+from taiga.users.serializers.nested import UserNestedSerializer
+
+
+class StoryStatusChangeNotificationContent(BaseModel):
+    projects: ProjectLinkNestedSerializer
+    story: StoryNestedSerializer
+    changed_by: UserNestedSerializer
+    status: str
+
+    class Config:
+        orm_mode = True
diff --git a/python/apps/taiga/src/taiga/stories/stories/repositories.py b/python/apps/taiga/src/taiga/stories/stories/repositories.py
index 4bc0bd597..69c117d33 100644
--- a/python/apps/taiga/src/taiga/stories/stories/repositories.py
+++ b/python/apps/taiga/src/taiga/stories/stories/repositories.py
@@ -235,6 +235,8 @@ def list_stories_to_reorder(filters: StoryFilters = {}) -> list[Story]:
     the order of the input references.
     """
     qs = _apply_filters_to_queryset(qs=DEFAULT_QUERYSET, filters=filters)
+    qs = _apply_select_related_to_queryset(qs=qs, select_related=["status", "project", "created_by"])
+    qs = _apply_prefetch_related_to_queryset(qs=qs, prefetch_related=["assignees"])
 
     stories = {s.ref: s for s in qs}
     return [stories[ref] for ref in filters["refs"] if stories.get(ref) is not None]
diff --git a/python/apps/taiga/src/taiga/stories/stories/services/__init__.py b/python/apps/taiga/src/taiga/stories/stories/services/__init__.py
index 4aabcd5ac..760008326 100644
--- a/python/apps/taiga/src/taiga/stories/stories/services/__init__.py
+++ b/python/apps/taiga/src/taiga/stories/stories/services/__init__.py
@@ -11,8 +11,10 @@
 
 from taiga.base.api import Pagination
 from taiga.base.repositories.neighbors import Neighbor
+from taiga.base.utils.datetime import aware_utcnow
 from taiga.projects.projects.models import Project
 from taiga.stories.stories import events as stories_events
+from taiga.stories.stories import notifications as stories_notifications
 from taiga.stories.stories import repositories as stories_repositories
 from taiga.stories.stories.models import Story
 from taiga.stories.stories.serializers import ReorderStoriesSerializer, StoryDetailSerializer, StorySummarySerializer
@@ -151,10 +153,11 @@ async def get_story_detail(
 async def update_story(
     story: Story,
     current_version: int,
+    updated_by: User,
     values: dict[str, Any] = {},
 ) -> StoryDetailSerializer:
     # Values to update
-    update_values = await _validate_and_process_values_to_update(story, values)
+    update_values = await _validate_and_process_values_to_update(story=story, updated_by=updated_by, values=values)
 
     # Old neighbors
     old_neighbors = None
@@ -181,47 +184,67 @@ async def update_story(
         updates_attrs=[*update_values],
     )
 
+    # Emit notifications
+    if "status" in update_values:
+        await stories_notifications.notify_when_story_status_change(
+            story=story,
+            status=update_values["status"].name,
+            emitted_by=updated_by,
+        )
+
     return detailed_story
 
 
-async def _validate_and_process_values_to_update(story: Story, values: dict[str, Any]) -> dict[str, Any]:
+async def _validate_and_process_values_to_update(
+    story: Story, updated_by: User, values: dict[str, Any]
+) -> dict[str, Any]:
     output = values.copy()
 
+    if "title" in output:
+        output.update(
+            title_updated_by=updated_by,
+            title_updated_at=aware_utcnow(),
+        )
+
+    if "description" in output:
+        output.update(
+            description_updated_by=updated_by,
+            description_updated_at=aware_utcnow(),
+        )
+
     if status_id := output.pop("status", None):
         status = await workflows_repositories.get_workflow_status(
             filters={"workflow_id": story.workflow_id, "id": status_id}
         )
-
         if not status:
             raise ex.InvalidStatusError("The provided status is not valid.")
-        elif status.id != story.status_id:
-            output["status"] = status
 
-            # Calculate new order
-            output["order"] = await _calculate_next_order(status_id=status.id)
+        if status.id != story.status_id:
+            output.update(status=status, order=await _calculate_next_order(status_id=status.id))
 
     elif workflow_slug := output.pop("workflow", None):
         workflow = await workflows_repositories.get_workflow(
             filters={"project_id": story.project_id, "slug": workflow_slug}, prefetch_related=["statuses"]
         )
-
         if not workflow:
             raise ex.InvalidWorkflowError("The provided workflow is not valid.")
-        elif workflow.slug != story.workflow.slug:
-            output["workflow"] = workflow
 
+        if workflow.slug != story.workflow.slug:
             # Set first status
-            first_status = await workflows_repositories.list_workflow_statuses(
+            first_status_list = await workflows_repositories.list_workflow_statuses(
                 filters={"workflow_id": workflow.id}, order_by=["order"], offset=0, limit=1
             )
 
-            if not first_status:
+            if not first_status_list:
                 raise ex.WorkflowHasNotStatusesError("The provided workflow hasn't any statuses.")
+            else:
+                first_status = first_status_list[0]
 
-            output["status"] = first_status[0]
-
-            # Calculate new order
-            output["order"] = await _calculate_next_order(status_id=first_status[0].id)
+            output.update(
+                workflow=workflow,
+                status=first_status,
+                order=await _calculate_next_order(status_id=first_status.id),
+            )
 
     return output
 
@@ -274,6 +297,7 @@ async def _calculate_offset(
 
 
 async def reorder_stories(
+    reordered_by: User,
     project: Project,
     workflow: Workflow,
     target_status_id: UUID,
@@ -320,8 +344,13 @@ async def reorder_stories(
     # update stories
     stories_to_update_tmp = {s.ref: s for s in stories_to_reorder}
     stories_to_update = []
+    stories_with_changed_status = []
     for i, ref in enumerate(stories_refs):
         story = stories_to_update_tmp[ref]
+
+        if story.status != target_status:
+            stories_with_changed_status.append(story)
+
         story.status = target_status
         story.order = pre_order + (offset * (i + 1))
         stories_to_update.append(story)
@@ -338,6 +367,14 @@ async def reorder_stories(
     # event
     await stories_events.emit_when_stories_are_reordered(project=project, reorder=reorder_story_serializer)
 
+    # notifications
+    for story in stories_with_changed_status:
+        await stories_notifications.notify_when_story_status_change(
+            story=story,
+            status=story.status.name,
+            emitted_by=reordered_by,
+        )
+
     return reorder_story_serializer
 
 
@@ -362,4 +399,4 @@ async def delete_story(story: Story, deleted_by: AnyUser) -> bool:
         )
         return True
 
-    return False
\ No newline at end of file
+    return False
diff --git a/python/apps/taiga/src/taiga/workflows/api/__init__.py b/python/apps/taiga/src/taiga/workflows/api/__init__.py
index f76ba7f46..31b1e6bc1 100644
--- a/python/apps/taiga/src/taiga/workflows/api/__init__.py
+++ b/python/apps/taiga/src/taiga/workflows/api/__init__.py
@@ -287,6 +287,7 @@ async def delete_workflow_status(
     await check_permissions(permissions=DELETE_WORKFLOW_STATUS, user=request.user, obj=workflow_status)
 
     await workflows_services.delete_workflow_status(
+        deleted_by=request.user,
         workflow_status=workflow_status,
         target_status_id=query_params.move_to,  # type: ignore
     )
diff --git a/python/apps/taiga/src/taiga/workflows/services/__init__.py b/python/apps/taiga/src/taiga/workflows/services/__init__.py
index cbeac0bf6..ba92a8b31 100644
--- a/python/apps/taiga/src/taiga/workflows/services/__init__.py
+++ b/python/apps/taiga/src/taiga/workflows/services/__init__.py
@@ -15,6 +15,7 @@
 from taiga.projects.projects.models import Project
 from taiga.stories.stories import repositories as stories_repositories
 from taiga.stories.stories import services as stories_services
+from taiga.users.models import User
 from taiga.workflows import events as workflows_events
 from taiga.workflows import repositories as workflows_repositories
 from taiga.workflows.models import Workflow, WorkflowStatus
@@ -296,11 +297,14 @@ async def reorder_workflow_statuses(
 ##########################################################
 
 
-async def delete_workflow_status(workflow_status: WorkflowStatus, target_status_id: UUID | None) -> bool:
+async def delete_workflow_status(
+    workflow_status: WorkflowStatus, deleted_by: User, target_status_id: UUID | None
+) -> bool:
     """
     This method deletes a workflow status, providing the option to first migrating its stories to another workflow
     status of the same workflow.
 
+    :param deleted_by: the user who is deleting the workflow status
     :param workflow_status: the workflow status to delete
     :param target_status_id: the workflow status's id to which move the stories from the status being deleted
         - if not received, all the workflow status and its contained stories will be deleted
@@ -329,6 +333,7 @@ async def delete_workflow_status(workflow_status: WorkflowStatus, target_status_
 
         if stories_to_move:
             await stories_services.reorder_stories(
+                reordered_by=deleted_by,
                 project=workflow_status.project,
                 workflow=workflow_status.workflow,
                 target_status_id=target_status_id,
diff --git a/python/apps/taiga/tests/integration/taiga/stories/stories/test_services.py b/python/apps/taiga/tests/integration/taiga/stories/stories/test_services.py
index 2e4733652..65496c02b 100644
--- a/python/apps/taiga/tests/integration/taiga/stories/stories/test_services.py
+++ b/python/apps/taiga/tests/integration/taiga/stories/stories/test_services.py
@@ -37,6 +37,7 @@ async def test_not_reorder_in_empty_status() -> None:
     # | story3   |          |
 
     await services.reorder_stories(
+        reordered_by=project.created_by,
         project=project,
         workflow=workflow,
         target_status_id=status_2.id,
@@ -72,7 +73,11 @@ async def test_not_reorder_in_populated_status() -> None:
     # | story2   |          |
 
     await services.reorder_stories(
-        project=project, workflow=workflow, target_status_id=status_2.id, stories_refs=[story2.ref]
+        reordered_by=project.created_by,
+        project=project,
+        workflow=workflow,
+        target_status_id=status_2.id,
+        stories_refs=[story2.ref],
     )
     # Now should be
     # | status_1 | status_2 |
@@ -103,6 +108,7 @@ async def test_after_in_the_end() -> None:
     # | story2   |          |
 
     await services.reorder_stories(
+        reordered_by=project.created_by,
         project=project,
         workflow=workflow,
         target_status_id=status_2.id,
@@ -138,6 +144,7 @@ async def test_after_in_the_middle() -> None:
     # |          | story3   |
 
     await services.reorder_stories(
+        reordered_by=project.created_by,
         project=project,
         workflow=workflow,
         target_status_id=status_2.id,
@@ -175,6 +182,7 @@ async def test_before_in_the_beginning() -> None:
     # |          | story3   |
 
     await services.reorder_stories(
+        reordered_by=project.created_by,
         project=project,
         workflow=workflow,
         target_status_id=status_2.id,
@@ -212,6 +220,7 @@ async def test_before_in_the_middle() -> None:
     # |          | story3   |
 
     await services.reorder_stories(
+        reordered_by=project.created_by,
         project=project,
         workflow=workflow,
         target_status_id=status_2.id,
diff --git a/python/apps/taiga/tests/unit/taiga/stories/stories/test_services.py b/python/apps/taiga/tests/unit/taiga/stories/stories/test_services.py
index 715599960..3e4ad3806 100644
--- a/python/apps/taiga/tests/unit/taiga/stories/stories/test_services.py
+++ b/python/apps/taiga/tests/unit/taiga/stories/stories/test_services.py
@@ -199,6 +199,7 @@ async def test_get_story_detail_no_neighbors():
 
 
 async def test_update_story_ok():
+    user = f.build_user()
     story = f.build_story()
     values = {"title": "new title", "description": "new description"}
     detailed_story = {
@@ -215,12 +216,14 @@ async def test_update_story_ok():
         ) as fake_validate_and_process,
         patch("taiga.stories.stories.services.get_story_detail", autospec=True) as fake_get_story_detail,
         patch("taiga.stories.stories.services.stories_events", autospec=True) as fake_stories_events,
+        patch("taiga.stories.stories.services.stories_notifications", autospec=True) as fake_notifications,
     ):
         fake_validate_and_process.return_value = values
         fake_stories_repo.update_story.return_value = True
         fake_get_story_detail.return_value = detailed_story
 
         updated_story = await services.update_story(
+            updated_by=user,
             story=story,
             current_version=story.version,
             values=values,
@@ -229,22 +232,30 @@ async def test_update_story_ok():
         fake_validate_and_process.assert_awaited_once_with(
             story=story,
             values=values,
+            updated_by=user,
         )
         fake_stories_repo.update_story.assert_awaited_once_with(
             id=story.id,
             current_version=story.version,
             values=values,
         )
-        fake_get_story_detail.assert_awaited_once_with(project_id=story.project_id, ref=story.ref, neighbors=None)
+        fake_get_story_detail.assert_awaited_once_with(
+            project_id=story.project_id,
+            ref=story.ref,
+            neighbors=None,
+        )
         fake_stories_events.emit_event_when_story_is_updated.assert_awaited_once_with(
             project=story.project,
             story=updated_story,
             updates_attrs=[*values],
         )
+        fake_notifications.notify_when_story_status_change.assert_not_awaited()
+
         assert updated_story == detailed_story
 
 
 async def test_update_story_workflow_ok():
+    user = f.build_user()
     project = f.build_project()
     old_workflow = f.build_workflow(project=project)
     workflow_status1 = f.build_workflow_status(workflow=old_workflow)
@@ -279,6 +290,7 @@ async def test_update_story_workflow_ok():
         ) as fake_validate_and_process,
         patch("taiga.stories.stories.services.get_story_detail", autospec=True) as fake_get_story_detail,
         patch("taiga.stories.stories.services.stories_events", autospec=True) as fake_stories_events,
+        patch("taiga.stories.stories.services.stories_notifications", autospec=True) as fake_notifications,
     ):
         fake_validate_and_process.return_value = values
         fake_stories_repo.list_story_neighbors.return_value = old_neighbors
@@ -286,14 +298,17 @@ async def test_update_story_workflow_ok():
         fake_get_story_detail.return_value = detailed_story
 
         updated_story = await services.update_story(
+            updated_by=user,
             story=story2,
             current_version=story2.version,
             values=values,
         )
+        assert updated_story == detailed_story
 
         fake_validate_and_process.assert_awaited_once_with(
             story=story2,
             values=values,
+            updated_by=user,
         )
         fake_stories_repo.update_story.assert_awaited_once_with(
             id=story2.id,
@@ -308,10 +323,12 @@ async def test_update_story_workflow_ok():
             story=updated_story,
             updates_attrs=[*values],
         )
-        assert updated_story == detailed_story
+
+        fake_notifications.notify_when_story_status_change.assert_awaited_once()
 
 
 async def test_update_story_error_wrong_version():
+    user = f.build_user()
     story = f.build_story()
     values = {"title": "new title"}
 
@@ -322,15 +339,23 @@ async def test_update_story_error_wrong_version():
         ) as fake_validate_and_process,
         patch("taiga.stories.stories.services.get_story_detail", autospec=True) as fake_get_story_detail,
         patch("taiga.stories.stories.services.stories_events", autospec=True) as fake_stories_events,
+        patch("taiga.stories.stories.services.stories_notifications", autospec=True) as fake_notifications,
     ):
         fake_validate_and_process.return_value = values
         fake_stories_repo.update_story.return_value = False
 
         with pytest.raises(ex.UpdatingStoryWithWrongVersionError):
-            await services.update_story(story=story, current_version=story.version, values=values)
+            await services.update_story(
+                updated_by=user,
+                story=story,
+                current_version=story.version,
+                values=values,
+            )
+
         fake_validate_and_process.assert_awaited_once_with(
             story=story,
             values=values,
+            updated_by=user,
         )
         fake_stories_repo.update_story.assert_awaited_once_with(
             id=story.id,
@@ -339,6 +364,7 @@ async def test_update_story_error_wrong_version():
         )
         fake_get_story_detail.assert_not_awaited()
         fake_stories_events.emit_event_when_story_is_updated.assert_not_awaited()
+        fake_notifications.notify_when_story_status_change.assert_not_awaited()
 
 
 #######################################################
@@ -347,6 +373,7 @@ async def test_update_story_error_wrong_version():
 
 
 async def test_validate_and_process_values_to_update_ok_without_status():
+    user = f.build_user()
     story = f.build_story()
     values = {"title": "new title", "description": "new description"}
 
@@ -354,15 +381,23 @@ async def test_validate_and_process_values_to_update_ok_without_status():
         patch("taiga.stories.stories.services.stories_repositories", autospec=True) as fake_stories_repo,
         patch("taiga.stories.stories.services.workflows_repositories", autospec=True) as fake_workflows_repo,
     ):
-        valid_values = await services._validate_and_process_values_to_update(story=story, values=values)
+        valid_values = await services._validate_and_process_values_to_update(
+            story=story, values=values, updated_by=user
+        )
 
         fake_workflows_repo.get_workflow_status.assert_not_awaited()
         fake_stories_repo.list_stories.assert_not_awaited()
 
-        assert valid_values == values
+        assert valid_values["title"] == values["title"]
+        assert "title_updated_at" in valid_values
+        assert "title_updated_by" in valid_values
+        assert valid_values["description"] == values["description"]
+        assert "description_updated_at" in valid_values
+        assert "description_updated_by" in valid_values
 
 
 async def test_validate_and_process_values_to_update_ok_with_status_empty():
+    user = f.build_user()
     story = f.build_story()
     status = f.build_workflow_status()
     values = {"title": "new title", "description": "new description", "status": status.id}
@@ -374,7 +409,9 @@ async def test_validate_and_process_values_to_update_ok_with_status_empty():
         fake_workflows_repo.get_workflow_status.return_value = status
         fake_stories_repo.list_stories.return_value = []
 
-        valid_values = await services._validate_and_process_values_to_update(story=story, values=values)
+        valid_values = await services._validate_and_process_values_to_update(
+            story=story, values=values, updated_by=user
+        )
 
         fake_workflows_repo.get_workflow_status.assert_awaited_once_with(
             filters={"workflow_id": story.workflow_id, "id": values["status"]},
@@ -387,11 +424,17 @@ async def test_validate_and_process_values_to_update_ok_with_status_empty():
         )
 
         assert valid_values["title"] == values["title"]
+        assert "title_updated_at" in valid_values
+        assert "title_updated_by" in valid_values
+        assert valid_values["description"] == values["description"]
+        assert "description_updated_at" in valid_values
+        assert "description_updated_by" in valid_values
         assert valid_values["status"] == status
         assert valid_values["order"] == services.DEFAULT_ORDER_OFFSET
 
 
 async def test_validate_and_process_values_to_update_ok_with_status_not_empty():
+    user = f.build_user()
     story = f.build_story()
     status = f.build_workflow_status()
     story2 = f.build_story(status=status, order=42)
@@ -404,7 +447,9 @@ async def test_validate_and_process_values_to_update_ok_with_status_not_empty():
         fake_workflows_repo.get_workflow_status.return_value = status
         fake_stories_repo.list_stories.return_value = [story2]
 
-        valid_values = await services._validate_and_process_values_to_update(story=story, values=values)
+        valid_values = await services._validate_and_process_values_to_update(
+            story=story, values=values, updated_by=user
+        )
 
         fake_workflows_repo.get_workflow_status.assert_awaited_once_with(
             filters={"workflow_id": story.workflow_id, "id": values["status"]},
@@ -417,11 +462,17 @@ async def test_validate_and_process_values_to_update_ok_with_status_not_empty():
         )
 
         assert valid_values["title"] == values["title"]
+        assert "title_updated_at" in valid_values
+        assert "title_updated_by" in valid_values
+        assert valid_values["description"] == values["description"]
+        assert "description_updated_at" in valid_values
+        assert "description_updated_by" in valid_values
         assert valid_values["status"] == status
         assert valid_values["order"] == services.DEFAULT_ORDER_OFFSET + story2.order
 
 
 async def test_validate_and_process_values_to_update_ok_with_same_status():
+    user = f.build_user()
     status = f.build_workflow_status()
     story = f.build_story(status=status)
     values = {"title": "new title", "description": "new description", "status": status.id}
@@ -432,7 +483,9 @@ async def test_validate_and_process_values_to_update_ok_with_same_status():
     ):
         fake_workflows_repo.get_workflow_status.return_value = status
 
-        valid_values = await services._validate_and_process_values_to_update(story=story, values=values)
+        valid_values = await services._validate_and_process_values_to_update(
+            story=story, values=values, updated_by=user
+        )
 
         fake_workflows_repo.get_workflow_status.assert_awaited_once_with(
             filters={"workflow_id": story.workflow_id, "id": values["status"]},
@@ -440,11 +493,17 @@ async def test_validate_and_process_values_to_update_ok_with_same_status():
         fake_stories_repo.list_stories.assert_not_awaited()
 
         assert valid_values["title"] == values["title"]
+        assert "title_updated_at" in valid_values
+        assert "title_updated_by" in valid_values
+        assert valid_values["description"] == values["description"]
+        assert "description_updated_at" in valid_values
+        assert "description_updated_by" in valid_values
         assert "status" not in valid_values
         assert "order" not in valid_values
 
 
 async def test_validate_and_process_values_to_update_error_wrong_status():
+    user = f.build_user()
     story = f.build_story()
     values = {"title": "new title", "description": "new description", "status": "wrong_status"}
 
@@ -455,7 +514,7 @@ async def test_validate_and_process_values_to_update_error_wrong_status():
         fake_workflows_repo.get_workflow_status.return_value = None
 
         with pytest.raises(ex.InvalidStatusError):
-            await services._validate_and_process_values_to_update(story=story, values=values)
+            await services._validate_and_process_values_to_update(story=story, values=values, updated_by=user)
 
         fake_workflows_repo.get_workflow_status.assert_awaited_once_with(
             filters={"workflow_id": story.workflow_id, "id": "wrong_status"},
@@ -464,6 +523,7 @@ async def test_validate_and_process_values_to_update_error_wrong_status():
 
 
 async def test_validate_and_process_values_to_update_ok_with_workflow():
+    user = f.build_user()
     project = f.build_project()
     workflow1 = f.build_workflow(project=project)
     status1 = f.build_workflow_status(workflow=workflow1)
@@ -482,7 +542,9 @@ async def test_validate_and_process_values_to_update_ok_with_workflow():
         fake_workflows_repo.list_workflow_statuses.return_value = [status2]
         fake_stories_repo.list_stories.return_value = [story2, status3]
 
-        valid_values = await services._validate_and_process_values_to_update(story=story1, values=values)
+        valid_values = await services._validate_and_process_values_to_update(
+            story=story1, values=values, updated_by=user
+        )
 
         fake_workflows_repo.get_workflow.assert_awaited_once_with(
             filters={"project_id": story1.project_id, "slug": workflow2.slug}, prefetch_related=["statuses"]
@@ -502,6 +564,7 @@ async def test_validate_and_process_values_to_update_ok_with_workflow():
 
 
 async def test_validate_and_process_values_to_update_error_wrong_workflow():
+    user = f.build_user()
     story = f.build_story()
     values = {"version": story.version, "workflow": "wrong_workflow"}
 
@@ -512,7 +575,7 @@ async def test_validate_and_process_values_to_update_error_wrong_workflow():
         fake_workflows_repo.get_workflow.return_value = None
 
         with pytest.raises(ex.InvalidWorkflowError):
-            await services._validate_and_process_values_to_update(story=story, values=values)
+            await services._validate_and_process_values_to_update(story=story, values=values, updated_by=user)
 
         fake_workflows_repo.get_workflow.assert_awaited_once_with(
             filters={"project_id": story.project_id, "slug": "wrong_workflow"}, prefetch_related=["statuses"]
@@ -521,6 +584,7 @@ async def test_validate_and_process_values_to_update_error_wrong_workflow():
 
 
 async def test_validate_and_process_values_to_update_error_workflow_without_statuses():
+    user = f.build_user()
     project = f.build_project()
     workflow1 = f.build_workflow(project=project)
     status1 = f.build_workflow_status(workflow=workflow1)
@@ -536,7 +600,7 @@ async def test_validate_and_process_values_to_update_error_workflow_without_stat
         fake_workflows_repo.list_workflow_statuses.return_value = []
 
         with pytest.raises(ex.WorkflowHasNotStatusesError):
-            await services._validate_and_process_values_to_update(story=story, values=values)
+            await services._validate_and_process_values_to_update(story=story, values=values, updated_by=user)
 
         fake_workflows_repo.get_workflow.assert_awaited_once_with(
             filters={"project_id": story.project_id, "slug": workflow2.slug}, prefetch_related=["statuses"]
@@ -609,24 +673,30 @@ async def test_calculate_offset() -> None:
 
 
 async def test_reorder_stories_ok():
+    user = f.build_user()
+    project = f.build_project()
+    workflow = f.build_workflow()
+    target_status = f.build_workflow_status()
+    reorder_story = f.build_story(ref=3)
+    s1 = f.build_story(ref=13)
+    s2 = f.build_story(ref=54)
+    s3 = f.build_story(ref=2)
+
     with (
         patch("taiga.stories.stories.services.workflows_repositories", autospec=True) as fake_workflows_repo,
         patch("taiga.stories.stories.services.stories_repositories", autospec=True) as fake_stories_repo,
         patch("taiga.stories.stories.services.stories_events", autospec=True) as fake_stories_events,
+        patch("taiga.stories.stories.services.stories_notifications", autospec=True) as fake_notifications,
     ):
-        target_status = f.build_workflow_status()
         fake_workflows_repo.get_workflow_status.return_value = target_status
-        reorder_story = f.build_story(ref=3)
         fake_stories_repo.get_story.return_value = reorder_story
-        s1 = f.build_story(ref=13)
-        s2 = f.build_story(ref=54)
-        s3 = f.build_story(ref=2)
         fake_stories_repo.list_stories_to_reorder.return_value = [s1, s2, s3]
 
         await services.reorder_stories(
-            project=f.build_project(),
+            reordered_by=user,
+            project=project,
             target_status_id=target_status.id,
-            workflow=f.build_workflow(),
+            workflow=workflow,
             stories_refs=[13, 54, 2],
             reorder={"place": "after", "ref": reorder_story.ref},
         )
@@ -635,9 +705,14 @@ async def test_reorder_stories_ok():
             objs_to_update=[s1, s2, s3], fields_to_update=["status", "order"]
         )
         fake_stories_events.emit_when_stories_are_reordered.assert_awaited_once()
+        assert fake_notifications.notify_when_story_status_change.await_count == 3
 
 
 async def test_reorder_story_workflowstatus_does_not_exist():
+    user = f.build_user()
+    project = f.build_project()
+    workflow = f.build_workflow()
+
     with (
         patch("taiga.stories.stories.services.workflows_repositories", autospec=True) as fake_workflows_repo,
         pytest.raises(ex.InvalidStatusError),
@@ -645,51 +720,62 @@ async def test_reorder_story_workflowstatus_does_not_exist():
         fake_workflows_repo.get_workflow_status.return_value = None
 
         await services.reorder_stories(
-            project=f.build_project(),
+            reordered_by=user,
+            project=project,
             target_status_id="non-existing",
-            workflow=f.build_workflow(),
+            workflow=workflow,
             stories_refs=[13, 54, 2],
             reorder={"place": "after", "ref": 3},
         )
 
 
 async def test_reorder_story_story_ref_does_not_exist():
+    user = f.build_user()
+    project = f.build_project()
+    workflow = f.build_workflow()
+    target_status = f.build_workflow_status()
+
     with (
         patch("taiga.stories.stories.services.workflows_repositories", autospec=True) as fake_workflows_repo,
         patch("taiga.stories.stories.services.stories_repositories", autospec=True) as fake_stories_repo,
         pytest.raises(ex.InvalidStoryRefError),
     ):
-        target_status = f.build_workflow_status()
         fake_workflows_repo.get_workflow_status.return_value = target_status
 
         fake_stories_repo.get_story.return_value = None
 
         await services.reorder_stories(
-            project=f.build_project(),
+            reordered_by=user,
+            project=project,
             target_status_id=target_status.id,
-            workflow=f.build_workflow(),
+            workflow=workflow,
             stories_refs=[13, 54, 2],
             reorder={"place": "after", "ref": 3},
         )
 
 
 async def test_reorder_story_not_all_stories_exist():
+    user = f.build_user()
+    project = f.build_project()
+    workflow = f.build_workflow()
+    target_status = f.build_workflow_status()
+    reorder_story = f.build_story(ref=3)
+
     with (
         patch("taiga.stories.stories.services.workflows_repositories", autospec=True) as fake_workflows_repo,
         patch("taiga.stories.stories.services.stories_repositories", autospec=True) as fake_stories_repo,
         pytest.raises(ex.InvalidStoryRefError),
     ):
-        target_status = f.build_workflow_status()
         fake_workflows_repo.get_workflow_status.return_value = target_status
 
-        reorder_story = f.build_story(ref=3)
         fake_stories_repo.get_story.return_value = reorder_story
         fake_stories_repo.list_stories.return_value = [f.build_story]
 
         await services.reorder_stories(
-            project=f.build_project(),
+            reordered_by=user,
+            project=project,
             target_status_id=target_status.id,
-            workflow=f.build_workflow(),
+            workflow=workflow,
             stories_refs=[13, 54, 2],
             reorder={"place": "after", "ref": reorder_story.ref},
         )
diff --git a/python/apps/taiga/tests/unit/taiga/workflows/test_services.py b/python/apps/taiga/tests/unit/taiga/workflows/test_services.py
index bac480d79..19b3da1f6 100644
--- a/python/apps/taiga/tests/unit/taiga/workflows/test_services.py
+++ b/python/apps/taiga/tests/unit/taiga/workflows/test_services.py
@@ -345,6 +345,7 @@ async def test_reorder_any_workflow_status_does_not_exist():
 
 
 async def test_delete_workflow_status_moving_stories_ok():
+    user = f.create_user()
     workflow = f.build_workflow()
     workflow_status1 = f.build_workflow_status(workflow=workflow)
     workflow_status2 = f.build_workflow_status(workflow=workflow)
@@ -362,7 +363,9 @@ async def test_delete_workflow_status_moving_stories_ok():
         fake_stories_repo.list_stories.return_value = workflow_status1_stories
         fake_stories_services.reorder_stories.return_value = None
 
-        await services.delete_workflow_status(workflow_status=workflow_status1, target_status_id=workflow_status2.id)
+        await services.delete_workflow_status(
+            workflow_status=workflow_status1, target_status_id=workflow_status2.id, deleted_by=user
+        )
 
         fake_get_workflow_status.assert_awaited_once_with(
             project_id=workflow.project.id, workflow_slug=workflow.slug, id=workflow_status2.id
@@ -374,6 +377,7 @@ async def test_delete_workflow_status_moving_stories_ok():
             order_by=["order"],
         )
         fake_stories_services.reorder_stories.assert_awaited_once_with(
+            reordered_by=user,
             project=workflow_status1.project,
             workflow=workflow,
             target_status_id=workflow_status2.id,
@@ -388,6 +392,7 @@ async def test_delete_workflow_status_moving_stories_ok():
 
 
 async def test_delete_workflow_status_deleting_stories_ok():
+    user = f.create_user()
     workflow = f.build_workflow()
     workflow_status1 = f.build_workflow_status(workflow=workflow)
     workflow_status1_stories = [f.build_story(status=workflow_status1, workflow=workflow)]
@@ -404,7 +409,7 @@ async def test_delete_workflow_status_deleting_stories_ok():
         fake_stories_repo.list_stories.return_value = workflow_status1_stories
         fake_stories_services.reorder_stories.return_value = None
 
-        await services.delete_workflow_status(workflow_status=workflow_status1, target_status_id=None)
+        await services.delete_workflow_status(workflow_status=workflow_status1, target_status_id=None, deleted_by=user)
 
         fake_get_workflow_status.assert_not_awaited()
         fake_stories_repo.list_stories.assert_not_awaited()
@@ -416,6 +421,7 @@ async def test_delete_workflow_status_deleting_stories_ok():
 
 
 async def test_delete_workflow_status_wrong_target_status_ex():
+    user = f.create_user()
     workflow = f.build_workflow()
     workflow_status1 = f.build_workflow_status(workflow=workflow)
     workflow_status2 = f.build_workflow_status(workflow=workflow)
@@ -426,7 +432,9 @@ async def test_delete_workflow_status_wrong_target_status_ex():
     ):
         fake_get_workflow_status.return_value = None
 
-        await services.delete_workflow_status(workflow_status=workflow_status1, target_status_id=workflow_status2.id)
+        await services.delete_workflow_status(
+            workflow_status=workflow_status1, target_status_id=workflow_status2.id, deleted_by=user
+        )
 
         fake_get_workflow_status.assert_awaited_once_with(
             project_id=workflow.project.id, workflow_slug=workflow.slug, id=workflow_status2.id
@@ -434,6 +442,7 @@ async def test_delete_workflow_status_wrong_target_status_ex():
 
 
 async def test_delete_workflow_status_same_target_status_ex():
+    user = f.create_user()
     workflow = f.build_workflow()
     workflow_status1 = f.build_workflow_status(workflow=workflow)
 
@@ -443,7 +452,9 @@ async def test_delete_workflow_status_same_target_status_ex():
     ):
         fake_get_workflow_status.return_value = workflow_status1
 
-        await services.delete_workflow_status(workflow_status=workflow_status1, target_status_id=workflow_status1.id)
+        await services.delete_workflow_status(
+            workflow_status=workflow_status1, target_status_id=workflow_status1.id, deleted_by=user
+        )
 
         fake_get_workflow_status.assert_awaited_once_with(
             project_id=workflow.project.id, workflow_slug=workflow.slug, id=workflow_status1.id