diff --git a/Gemfile b/Gemfile
index 412ea4261319..4d034992f05e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -208,7 +208,7 @@ gem "aws-sdk-core", "~> 3.244"
 # File upload via fog + screenshots on travis
 gem "aws-sdk-s3", "~> 1.217"
 
-gem "openproject-token", "~> 8.8.2"
+gem "openproject-token", "~> 8.9.0"
 
 gem "plaintext", "~> 0.3.7"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 73046f9e47a9..b2f8f662d035 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -913,7 +913,7 @@ GEM
       activesupport (>= 7.2.0)
       openproject-octicons (>= 19.34.0)
       view_component (>= 3.1, < 5.0)
-    openproject-token (8.8.2)
+    openproject-token (8.9.0)
       activemodel
     openssl (4.0.1)
     openssl-signature_algorithm (1.3.0)
@@ -1692,7 +1692,7 @@ DEPENDENCIES
   openproject-reporting!
   openproject-storages!
   openproject-team_planner!
-  openproject-token (~> 8.8.2)
+  openproject-token (~> 8.9.0)
   openproject-two_factor_authentication!
   openproject-webhooks!
   openproject-wikis!
@@ -2074,7 +2074,7 @@ CHECKSUMS
   openproject-reporting (1.0.0)
   openproject-storages (1.0.0)
   openproject-team_planner (1.0.0)
-  openproject-token (8.8.2) sha256=081cbff7269d92a82fa1d63e9e09c87b70d47d7aefadcbb80d1e7368bc2cf096
+  openproject-token (8.9.0) sha256=aa08c144889010750de4edaf61f8614ccb82ac6c63beef1d3a21c6a222358605
   openproject-two_factor_authentication (1.0.0)
   openproject-webhooks (1.0.0)
   openproject-wikis (1.0.0)
diff --git a/app/assets/videos/enterprise/sprint-sharing.mp4 b/app/assets/videos/enterprise/sprint-sharing.mp4
new file mode 100644
index 000000000000..16f5af261f66
Binary files /dev/null and b/app/assets/videos/enterprise/sprint-sharing.mp4 differ
diff --git a/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.html.erb b/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.html.erb
index 0e5b2c1050aa..03bae13cf228 100644
--- a/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.html.erb
+++ b/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.html.erb
@@ -29,7 +29,11 @@ See COPYRIGHT and LICENSE files for more details.
 
 <%=
   render(Primer::Beta::Text.new(tag: :div, color: :muted, mb: 3)) do
-    I18n.t("backlogs.sharing_description")
+    if only_fallback_allowed
+      t(".sharing_fallback_description")
+    else
+      t(".sharing_description")
+    end
   end
 %>
 
@@ -40,6 +44,6 @@ See COPYRIGHT and LICENSE files for more details.
     method: :patch,
     data: { turbo_frame: "_top", controller: "show-when-value-selected" }
   ) do |f|
-    render(Projects::Settings::Backlogs::SharingForm.new(f))
+    render(Projects::Settings::Backlogs::SharingForm.new(f, only_fallback_allowed:))
   end
 %>
diff --git a/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.rb b/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.rb
index 94847d32bca1..db1dc9212811 100644
--- a/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.rb
+++ b/modules/backlogs/app/components/projects/settings/backlogs/sharing_form_component.rb
@@ -35,15 +35,17 @@ class SharingFormComponent < ApplicationComponent
         include ApplicationHelper
         include OpPrimer::ComponentHelpers
 
-        def initialize(project:)
+        def initialize(project:,
+                       only_fallback_allowed: false)
           super
 
           @project = project
+          @only_fallback_allowed = only_fallback_allowed
         end
 
         private
 
-        attr_reader :project
+        attr_reader :project, :only_fallback_allowed
       end
     end
   end
diff --git a/modules/backlogs/app/contracts/projects/backlog_settings_contract.rb b/modules/backlogs/app/contracts/projects/backlog_settings_contract.rb
index ff6ee0655174..fdda479043e8 100644
--- a/modules/backlogs/app/contracts/projects/backlog_settings_contract.rb
+++ b/modules/backlogs/app/contracts/projects/backlog_settings_contract.rb
@@ -41,6 +41,7 @@ class BacklogSettingsContract < ::ModelContract
     validate :validate_global_sprint_sharer_uniqueness
     validates :sprint_sharing, presence: true
     validates :sprint_sharing, inclusion: { in: Project::SPRINT_SHARING_MODES }, allow_blank: true
+    validate :validate_sprint_sharing_in_ee_token
 
     def validate_model? = false
 
@@ -64,5 +65,19 @@ def validate_global_sprint_sharer_uniqueness
         end
       end
     end
+
+    def validate_sprint_sharing_in_ee_token
+      if !model.not_sharing_sprints? &&
+         !EnterpriseToken.allows_to?(:sprint_sharing) &&
+         sprint_sharing_changed?
+        errors.add :sprint_sharing,
+                   :enterprise_plan_required,
+                   plan_name: I18n.t("ee.upsell.plan_name", plan: OpenProject::Token.lowest_plan_for(:sprint_sharing))
+      end
+    end
+
+    def sprint_sharing_changed?
+      model.settings_change&.any? { it.key?("sprint_sharing") }
+    end
   end
 end
diff --git a/modules/backlogs/app/forms/projects/settings/backlogs/sharing_form.rb b/modules/backlogs/app/forms/projects/settings/backlogs/sharing_form.rb
index 38eac5f43c51..767a7762b77b 100644
--- a/modules/backlogs/app/forms/projects/settings/backlogs/sharing_form.rb
+++ b/modules/backlogs/app/forms/projects/settings/backlogs/sharing_form.rb
@@ -36,27 +36,47 @@ class SharingForm < ApplicationForm
           # TODO: Remove this hidden field, once the `radio_button_group` supports rendering
           # the hidden empty field.
           # The purpose of the hidden field is to ensure we submit the `sprint_sharing` field
-          # even if no radio button is chosen. Otherwise, the submitted form will not include
+          # even if:
+          #   * no radio button is chosen.
+          #   * the selected option is disabled because of a missing EE token.
+          # Otherwise, the submitted form will not include
           # the field at all and the save request will return success when in fact no setting
           # is saved.
           # Ideally the hidden field should automatically be rendered by the `radio_button_group`
           # helper, similar to how the `collection_radio_buttons` rails helper does.
-          sharing_form.hidden(name: :sprint_sharing, value: "")
+          sharing_form.hidden(name: :sprint_sharing, value: model.sprint_sharing)
 
           sharing_form.radio_button_group(
             name: :sprint_sharing,
             label: I18n.t("projects.settings.backlog_sharing.sprint_sharing")
           ) do |group|
-            Project::SPRINT_SHARING_MODES.each do |option|
-              group.radio_button(
-                label: sharing_option_text(option, :label),
-                value: option,
-                checked: checked?(option),
-                disabled: disabled?(option),
-                caption: caption_for(option),
-                data: { "show-when-value-selected-target": "cause" }
-              )
-            end
+            group.radio_button(
+              label: sharing_option_label(Project::NO_SHARING),
+              value: Project::NO_SHARING,
+              caption: sharing_option_caption(Project::NO_SHARING),
+              data: { "show-when-value-selected-target": "cause" }
+            )
+            group.radio_button(
+              label: sharing_option_label(Project::SHARE_ALL_PROJECTS),
+              value: Project::SHARE_ALL_PROJECTS,
+              disabled: only_fallback_allowed || share_all_projects_disabled?,
+              caption: shared_all_projects_caption,
+              data: { "show-when-value-selected-target": "cause" }
+            )
+            group.radio_button(
+              label: sharing_option_label(Project::SHARE_SUBPROJECTS),
+              value: Project::SHARE_SUBPROJECTS,
+              disabled: only_fallback_allowed,
+              caption: sharing_option_caption(Project::SHARE_SUBPROJECTS),
+              data: { "show-when-value-selected-target": "cause" }
+            )
+            group.radio_button(
+              label: sharing_option_label(Project::RECEIVE_SHARED),
+              value: Project::RECEIVE_SHARED,
+              disabled: only_fallback_allowed,
+              caption: sharing_option_caption(Project::RECEIVE_SHARED),
+              data: { "show-when-value-selected-target": "cause" }
+            )
           end
 
           sharing_form.html_content { banner_for(Project::SHARE_SUBPROJECTS, type: :info) }
@@ -69,32 +89,27 @@ class SharingForm < ApplicationForm
           )
         end
 
+        def initialize(only_fallback_allowed: false)
+          super()
+          @only_fallback_allowed = only_fallback_allowed
+        end
+
         private
 
-        def checked?(option)
-          option == model.sprint_sharing
+        attr_reader :only_fallback_allowed
+
+        def sharing_option_caption(option)
+          sharing_option_text(option, :caption)
         end
 
-        def disabled?(option)
-          option == Project::SHARE_ALL_PROJECTS && share_all_projects_disabled?
+        def sharing_option_label(option)
+          sharing_option_text(option, :label)
         end
 
         def sharing_option_text(option, key, **)
           I18n.t("projects.settings.backlog_sharing.options.#{option}.#{key}", **)
         end
 
-        def caption_for(option)
-          if disabled?(option)
-            if User.current.allowed_in_project?(:view_project, global_sprint_sharer)
-              sharing_option_text(option, :disabled_caption, name: global_sprint_sharer.name)
-            else
-              sharing_option_text(option, :disabled_caption_anonymous)
-            end
-          else
-            sharing_option_text(option, :caption)
-          end
-        end
-
         def share_all_projects_disabled?
           global_sprint_sharer && global_sprint_sharer != model
         end
@@ -117,6 +132,16 @@ def banner_for(option, type: :info)
             end
           end
         end
+
+        def shared_all_projects_caption
+          if !only_fallback_allowed && !share_all_projects_disabled?
+            sharing_option_caption(Project::SHARE_ALL_PROJECTS)
+          elsif User.current.allowed_in_project?(:view_project, global_sprint_sharer)
+            sharing_option_text(Project::SHARE_ALL_PROJECTS, :disabled_caption, name: global_sprint_sharer.name)
+          else
+            sharing_option_text(Project::SHARE_ALL_PROJECTS, :disabled_caption_anonymous)
+          end
+        end
       end
     end
   end
diff --git a/modules/backlogs/app/views/projects/settings/backlog_sharings/show.html.erb b/modules/backlogs/app/views/projects/settings/backlog_sharings/show.html.erb
index 9bd548440053..3c18055a4492 100644
--- a/modules/backlogs/app/views/projects/settings/backlog_sharings/show.html.erb
+++ b/modules/backlogs/app/views/projects/settings/backlog_sharings/show.html.erb
@@ -35,5 +35,18 @@ See COPYRIGHT and LICENSE files for more details.
         )
       ) %>
 
-  <%= render(Projects::Settings::Backlogs::SharingFormComponent.new(project: @project)) %>
+  <% with_enterprise_banner_guard(
+       :sprint_sharing,
+       inactive_guard: !@project.not_sharing_sprints?,
+       variant: :large,
+       video: "enterprise/sprint-sharing.mp4"
+     ) do %>
+    <%= render(EnterpriseEdition::BannerComponent.new(:sprint_sharing, variant: :inline)) %>
+    <%= render(
+          Projects::Settings::Backlogs::SharingFormComponent.new(
+            project: @project,
+            only_fallback_allowed: !EnterpriseToken.allows_to?(:sprint_sharing)
+          )
+        ) %>
+  <% end %>
 <% end %>
diff --git a/modules/backlogs/config/locales/en.yml b/modules/backlogs/config/locales/en.yml
index c3dfa0d0da13..e35dcb216c0f 100644
--- a/modules/backlogs/config/locales/en.yml
+++ b/modules/backlogs/config/locales/en.yml
@@ -98,7 +98,6 @@ en:
     definition_of_done: "Definition of Done"
     definition_of_done_caption: "Work packages with these statuses are treated as completed in backlog views and reporting."
     done_status: "Done status"
-    sharing_description: "This project can either share its own sprints, receive shared sprints or handle sprints independently (no sharing)."
     sharing: "Sharing"
     label_burndown_chart: "Burndown chart"
     label_sprint_board: "Sprint board"
@@ -227,6 +226,13 @@ en:
     story_points: "Story points"
     story_points_ideal: "Story points (ideal)"
 
+  ee:
+    features:
+      sprint_sharing: "Sprint sharing"
+    upsell:
+      sprint_sharing:
+        description: "Share sprints across projects to align teams and coordinate work in scaled agile setups (SAFe)."
+
   label_backlog: "Backlog"
   label_backlog_bucket_edit: "Edit backlog bucket"
   label_backlog_bucket_new: "New backlog bucket"
@@ -278,4 +284,10 @@ en:
             info: "Sharing a sprint will share the name, status and the start and finish dates in all projects. These cannot be modified in projects that receive and use these sprints."
         sprint_sharing: Share sprints
 
+      backlogs:
+        sharing_form_component:
+          sharing_description: "This project can either share its own sprints, receive shared sprints or handle sprints independently (no sharing)."
+          sharing_fallback_description: "Lacking a corporate enterprise plan, the sharing options are limited to the project's own sprints. The currently active setting remains active."
+
+
   remaining_hours: "remaining work"
diff --git a/modules/backlogs/lib/open_project/backlogs/engine.rb b/modules/backlogs/lib/open_project/backlogs/engine.rb
index 0129945736be..8338e9f9438f 100644
--- a/modules/backlogs/lib/open_project/backlogs/engine.rb
+++ b/modules/backlogs/lib/open_project/backlogs/engine.rb
@@ -136,6 +136,7 @@ def self.settings
     patch_with_namespace :WorkPackages, :SetAttributesService
     patch_with_namespace :WorkPackages, :BaseContract
     patch_with_namespace :WorkPackages, :UpdateContract
+    patch_with_namespace :Projects, :CopyService
     patch_with_namespace :API, :V3, :WorkPackages, :EagerLoading, :Checksum
     patch_with_namespace :API, :V3, :WorkPackages, :Schema, :SpecificWorkPackageSchema
 
diff --git a/modules/backlogs/lib/open_project/backlogs/patches/copy_service_patch.rb b/modules/backlogs/lib/open_project/backlogs/patches/copy_service_patch.rb
new file mode 100644
index 000000000000..34e8fb663d01
--- /dev/null
+++ b/modules/backlogs/lib/open_project/backlogs/patches/copy_service_patch.rb
@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+# -- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See COPYRIGHT and LICENSE files for more details.
+# ++
+
+module OpenProject::Backlogs::Patches::CopyServicePatch
+  extend ActiveSupport::Concern
+
+  included do
+    prepend InstanceMethods
+  end
+
+  module InstanceMethods
+    def clean_settings_attributes!(settings)
+      # There can be only one project sharing with all projects.
+      if settings["sprint_sharing"] == Projects::SprintSharing::SHARE_ALL_PROJECTS ||
+         !EnterpriseToken.allows_to?(:sprint_sharing)
+        settings.delete("sprint_sharing")
+      end
+
+      super
+    end
+  end
+end
diff --git a/modules/backlogs/spec/contracts/projects/backlog_settings_contract_spec.rb b/modules/backlogs/spec/contracts/projects/backlog_settings_contract_spec.rb
index 510289290d18..f6cadae09287 100644
--- a/modules/backlogs/spec/contracts/projects/backlog_settings_contract_spec.rb
+++ b/modules/backlogs/spec/contracts/projects/backlog_settings_contract_spec.rb
@@ -3,11 +3,11 @@
 require "spec_helper"
 require "contracts/shared/model_contract_shared_context"
 
-RSpec.describe Projects::BacklogSettingsContract, type: :model do
+RSpec.describe Projects::BacklogSettingsContract, type: :model, with_ee: %i[sprint_sharing] do
   include_context "ModelContract shared context"
 
   let(:current_user) { build_stubbed(:user) }
-  let(:project) { create(:project) }
+  let(:project) { build_stubbed(:project) }
   let(:permissions) { %i(share_sprint) }
 
   subject(:contract) { described_class.new(project, current_user) }
@@ -35,7 +35,7 @@
 
     # This spec of explicitly setting sprint_sharing to empty is required because the
     # simple presence validation spec is not sufficient to catch certain corner cases.
-    # For example, when the sprint_sharing getter is overriden to provide a default value,
+    # For example, when the sprint_sharing getter is overridden to provide a default value,
     # and the user submits an empty value, the contract should be invalid.
     context "when sprint_sharing is empty" do
       before { project.sprint_sharing = "" }
@@ -57,6 +57,62 @@
       end
     end
 
+    context "when the `sprint_sharing` is not part of the current EE token", with_ee: [] do
+      context "when sprint sharing is set to 'no_sharing'" do
+        before { project.sprint_sharing = Project::NO_SHARING }
+
+        it_behaves_like "contract is valid"
+      end
+
+      context "when sprint sharing is set to 'share_all_projects'" do
+        before { project.sprint_sharing = Project::SHARE_ALL_PROJECTS }
+
+        it_behaves_like "contract is invalid",
+                        sprint_sharing: { error: :enterprise_plan_required, plan_name: "corporate enterprise plan" }
+      end
+
+      context "when sprint sharing is set to 'share_subprojects'" do
+        before { project.sprint_sharing = Project::SHARE_SUBPROJECTS }
+
+        it_behaves_like "contract is invalid",
+                        sprint_sharing: { error: :enterprise_plan_required, plan_name: "corporate enterprise plan" }
+      end
+
+      context "when sprint sharing is set to 'receive_shared'" do
+        before { project.sprint_sharing = Project::RECEIVE_SHARED }
+
+        it_behaves_like "contract is invalid",
+                        sprint_sharing: { error: :enterprise_plan_required, plan_name: "corporate enterprise plan" }
+      end
+
+      context "when sprint sharing remains on 'share_all_projects'" do
+        before do
+          project.sprint_sharing = Project::SHARE_ALL_PROJECTS
+          project.clear_changes_information
+        end
+
+        it_behaves_like "contract is valid"
+      end
+
+      context "when sprint sharing remains on 'share_subprojects'" do
+        before do
+          project.sprint_sharing = Project::SHARE_SUBPROJECTS
+          project.clear_changes_information
+        end
+
+        it_behaves_like "contract is valid"
+      end
+
+      context "when sprint sharing remains on 'receive_shared'" do
+        before do
+          project.sprint_sharing = Project::RECEIVE_SHARED
+          project.clear_changes_information
+        end
+
+        it_behaves_like "contract is valid"
+      end
+    end
+
     describe "#validate_global_sprint_sharer_uniqueness" do
       before do
         project.sprint_sharing = "share_all_projects"
diff --git a/modules/backlogs/spec/features/projects/settings/backlog_sharing_settings_spec.rb b/modules/backlogs/spec/features/projects/settings/backlog_sharing_settings_spec.rb
index f498dd1422c5..60f208f43418 100644
--- a/modules/backlogs/spec/features/projects/settings/backlog_sharing_settings_spec.rb
+++ b/modules/backlogs/spec/features/projects/settings/backlog_sharing_settings_spec.rb
@@ -42,7 +42,8 @@
     login_as current_user
   end
 
-  context "with share_sprint permission" do
+  context "with share_sprint permission and enterprise token",
+          with_ee: [:sprint_sharing] do
     it "displays and stores sprint sharing settings" do
       visit project_settings_backlog_sharing_path(project)
 
@@ -127,6 +128,50 @@
     end
   end
 
+  context "with share_sprint permission but no enterprise token" do
+    context "without existing sharing setting in the project" do
+      it "shows an enterprise token teaser" do
+        visit project_settings_backlog_sharing_path(project)
+
+        expect(page).to have_text("Share sprints across projects to align teams")
+
+        expect(page).to have_no_field("Don't share")
+        expect(page).to have_no_field("All projects")
+        expect(page).to have_no_field("Subprojects")
+        expect(page).to have_no_field("Receive shared sprints")
+      end
+    end
+
+    context "with existing sharing setting in the project" do
+      before do
+        project.update!(sprint_sharing: "receive_shared")
+      end
+
+      it "shows the existing sharing setting but disables them except for `Don't share`" do
+        visit project_settings_backlog_sharing_path(project)
+
+        # All radio buttons are present with the selected option displayed.
+        # But all except the "Don't share" option are disabled.
+        expect(page).to have_unchecked_field("Don't share")
+        expect(page).to have_unchecked_field("All projects", disabled: true)
+        expect(page).to have_unchecked_field("Subprojects", disabled: true)
+        expect(page).to have_checked_field("Receive shared sprints", disabled: true)
+
+        choose("Don't share")
+
+        click_button "Save"
+
+        # Now that the `Don't share` option is selected, the large enterprise banner is displayed.
+        expect(page).to have_text("Share sprints across projects to align teams")
+
+        expect(page).to have_no_field("Don't share")
+        expect(page).to have_no_field("All projects")
+        expect(page).to have_no_field("Subprojects")
+        expect(page).to have_no_field("Receive shared sprints")
+      end
+    end
+  end
+
   context "without share_sprint permission" do
     let(:permissions) { %i[create_sprints select_done_statuses] }
 
diff --git a/modules/backlogs/spec/services/projects/copy_service_integration_spec.rb b/modules/backlogs/spec/services/projects/copy_service_integration_spec.rb
new file mode 100644
index 000000000000..05443b2e93c7
--- /dev/null
+++ b/modules/backlogs/spec/services/projects/copy_service_integration_spec.rb
@@ -0,0 +1,128 @@
+# frozen_string_literal: true
+
+# -- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See COPYRIGHT and LICENSE files for more details.
+# ++
+
+require "spec_helper"
+
+RSpec.describe Projects::CopyService, "integration", type: :model do
+  shared_let(:role) do
+    create(:project_role,
+           permissions: %i[copy_projects])
+  end
+  shared_let(:source) do
+    create(:project,
+           name: "Source Project Name",
+           enabled_module_names: %i[work_package_tracking backlogs])
+  end
+  shared_let(:current_user) do
+    create(:user,
+           member_with_roles: { source => role })
+  end
+
+  let(:instance) { described_class.new(source:, user: current_user) }
+  let(:target_project_params) do
+    { name: "Target Project Name", identifier: "some-identifier" }
+  end
+  let(:params) do
+    { target_project_params:, send_notifications: false }
+  end
+  let(:project_copy) { subject.result }
+
+  describe ".call" do
+    subject { instance.call(params) }
+
+    describe "#sprint_sharing setting" do
+      context "with an ee license for sprint sharing", with_ee: %i[sprint_sharing] do
+        context "when the source project is set to receive" do
+          before do
+            source.sprint_sharing = Projects::SprintSharing::RECEIVE_SHARED
+            source.save!
+          end
+
+          it "copies the backlog sharing setting" do
+            expect(subject).to be_success
+            expect(project_copy.sprint_sharing).to eq Projects::SprintSharing::RECEIVE_SHARED
+          end
+        end
+
+        context "when the source project is set to share with subprojects" do
+          before do
+            source.sprint_sharing = Projects::SprintSharing::SHARE_SUBPROJECTS
+            source.save!
+          end
+
+          it "copies the backlog sharing setting" do
+            expect(subject).to be_success
+            expect(project_copy.sprint_sharing).to eq Projects::SprintSharing::SHARE_SUBPROJECTS
+          end
+        end
+
+        context "when the source project is set to not share" do
+          before do
+            source.sprint_sharing = Projects::SprintSharing::NO_SHARING
+            source.save!
+          end
+
+          it "copies the backlog sharing setting" do
+            expect(subject).to be_success
+            expect(project_copy.sprint_sharing).to eq Projects::SprintSharing::NO_SHARING
+          end
+        end
+
+        context "when the source project is set to share with all" do
+          before do
+            source.sprint_sharing = Projects::SprintSharing::SHARE_ALL_PROJECTS
+            source.save!
+          end
+
+          it "does not copy the setting as that would result in two projects sharing with all" do
+            expect(subject).to be_success
+            expect(project_copy.sprint_sharing).to eq Projects::SprintSharing::NO_SHARING
+          end
+        end
+      end
+
+      context "without an ee license for sprint sharing", with_ee: %i[] do
+        Projects::SprintSharing::SPRINT_SHARING_MODES.each do |mode|
+          context "when the source project is set to #{mode}" do
+            before do
+              source.sprint_sharing = mode
+              source.save!
+            end
+
+            it "copies the backlog sharing setting" do
+              expect(subject).to be_success
+              expect(project_copy.sprint_sharing).to eq Projects::SprintSharing::NO_SHARING
+            end
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/contracts/shared/model_contract_shared_context.rb b/spec/contracts/shared/model_contract_shared_context.rb
index ab36a18e7bc3..94bf6284422d 100644
--- a/spec/contracts/shared/model_contract_shared_context.rb
+++ b/spec/contracts/shared/model_contract_shared_context.rb
@@ -48,7 +48,11 @@ def expect_contract_invalid(errors = {})
         [error_symbols]
       end
     end
-    contract_errors = errors.keys.index_with { |key| contract.errors.symbols_for(key) }
+
+    contract_errors = errors.keys.index_with do |key|
+      errors[key].is_a?(Hash) ? contract.errors.details[key] : contract.errors.symbols_for(key)
+    end
+
     expect(contract_errors).to match(expected_errors)
     if RSpec.current_example.metadata[:check_errors_i18n]
       # ensure no I18n::MissingTranslationData is raised because of missing attributes and/or errors translations