diff --git a/app/controllers/delete_logs_controller.rb b/app/controllers/delete_logs_controller.rb
index 0b4dc3ba5..5f4c97cbd 100644
--- a/app/controllers/delete_logs_controller.rb
+++ b/app/controllers/delete_logs_controller.rb
@@ -26,8 +26,11 @@ class DeleteLogsController < ApplicationController
   def discard_lettings_logs
     logs = LettingsLog.find(params.require(:ids))
     discard logs
-
-    redirect_to lettings_logs_path, notice: I18n.t("notification.logs_deleted", count: logs.count)
+    if request.referer&.include?("delete-duplicates")
+      redirect_to lettings_log_duplicate_logs_path(lettings_log_id: params["remaining_log_id"], original_log_id: params["original_log_id"]), notice: I18n.t("notification.duplicate_logs_deleted", count: logs.count, log_ids: duplicate_log_ids(logs))
+    else
+      redirect_to lettings_logs_path, notice: I18n.t("notification.logs_deleted", count: logs.count)
+    end
   end
 
   def delete_sales_logs
@@ -52,8 +55,11 @@ class DeleteLogsController < ApplicationController
   def discard_sales_logs
     logs = SalesLog.find(params.require(:ids))
     discard logs
-
-    redirect_to sales_logs_path, notice: I18n.t("notification.logs_deleted", count: logs.count)
+    if request.referer&.include?("delete-duplicates")
+      redirect_to sales_log_duplicate_logs_path(sales_log_id: params["remaining_log_id"], original_log_id: params["original_log_id"]), notice: I18n.t("notification.duplicate_logs_deleted", count: logs.count, log_ids: duplicate_log_ids(logs))
+    else
+      redirect_to sales_logs_path, notice: I18n.t("notification.logs_deleted", count: logs.count)
+    end
   end
 
   def delete_lettings_logs_for_organisation
@@ -193,4 +199,8 @@ private
       log.discard!
     end
   end
+
+  def duplicate_log_ids(logs)
+    logs.map { |log| "Log #{log.id}" }.to_sentence(last_word_connector: " and ")
+  end
 end
diff --git a/app/controllers/duplicate_logs_controller.rb b/app/controllers/duplicate_logs_controller.rb
index 21e853bf9..b084a8124 100644
--- a/app/controllers/duplicate_logs_controller.rb
+++ b/app/controllers/duplicate_logs_controller.rb
@@ -1,14 +1,11 @@
 class DuplicateLogsController < ApplicationController
   before_action :authenticate_user!
   before_action :find_resource_by_named_id
+  before_action :find_duplicate_logs
+  before_action :find_original_log_id
 
   def show
     if @log
-      @duplicate_logs = if @log.lettings?
-                          current_user.lettings_logs.duplicate_logs(@log)
-                        else
-                          current_user.sales_logs.duplicate_logs(@log)
-                        end
       @all_duplicates = [@log, *@duplicate_logs]
       @duplicate_check_questions = duplicate_check_question_ids.map { |question_id|
         question = @log.form.get_question(question_id, @log)
@@ -19,6 +16,12 @@ class DuplicateLogsController < ApplicationController
     end
   end
 
+  def delete_duplicates
+    return render_not_found unless @log && @duplicate_logs.any?
+
+    render "logs/delete_duplicates"
+  end
+
 private
 
   def find_resource_by_named_id
@@ -29,6 +32,16 @@ private
            end
   end
 
+  def find_duplicate_logs
+    return unless @log
+
+    @duplicate_logs = if @log.lettings?
+                        current_user.lettings_logs.duplicate_logs(@log)
+                      else
+                        current_user.sales_logs.duplicate_logs(@log)
+                      end
+  end
+
   def duplicate_check_question_ids
     if @log.lettings?
       ["owning_organisation_id",
@@ -47,4 +60,9 @@ private
       %w[owning_organisation_id saledate purchid age1 sex1 ecstat1 postcode_full]
     end
   end
+
+  def find_original_log_id
+    query_params = URI.parse(request.url).query
+    @original_log_id = CGI.parse(query_params)["original_log_id"][0]&.to_i if query_params.present?
+  end
 end
diff --git a/app/controllers/form_controller.rb b/app/controllers/form_controller.rb
index f016291ff..b7ab5de29 100644
--- a/app/controllers/form_controller.rb
+++ b/app/controllers/form_controller.rb
@@ -141,9 +141,16 @@ private
     return unless query_params
 
     parsed_params = CGI.parse(query_params)
-    return unless parsed_params["referrer"]
+    parsed_params["referrer"]&.first
+  end
+
+  def original_duplicate_log_id_from_query
+    query_params = URI.parse(request.url).query
 
-    parsed_params["referrer"][0]
+    return unless query_params
+
+    parsed_params = CGI.parse(query_params)
+    parsed_params["original_log_id"]&.first
   end
 
   def previous_interruption_screen_page_id
@@ -158,10 +165,10 @@ private
     if FeatureToggle.deduplication_flow_enabled?
       if @log.lettings?
         if current_user.lettings_logs.duplicate_logs(@log).count.positive?
-          return send("lettings_log_duplicate_logs_path", @log)
+          return send("lettings_log_duplicate_logs_path", @log, original_log_id: @log.id)
         end
       elsif current_user.sales_logs.duplicate_logs(@log).count.positive?
-        return send("sales_log_duplicate_logs_path", @log)
+        return send("sales_log_duplicate_logs_path", @log, original_log_id: @log.id)
       end
     end
 
@@ -177,7 +184,7 @@ private
       end
     end
     if previous_interruption_screen_page_id.present?
-      return send("#{@log.class.name.underscore}_#{previous_interruption_screen_page_id}_path", @log, { referrer: previous_interruption_screen_referrer }.compact)
+      return send("#{@log.class.name.underscore}_#{previous_interruption_screen_page_id}_path", @log, { referrer: previous_interruption_screen_referrer, original_log_id: original_duplicate_log_id_from_query }.compact)
     end
 
     redirect_path = form.next_page_redirect_path(@page, @log, current_user)
diff --git a/app/controllers/lettings_logs_controller.rb b/app/controllers/lettings_logs_controller.rb
index b29e72b5d..64e07efcd 100644
--- a/app/controllers/lettings_logs_controller.rb
+++ b/app/controllers/lettings_logs_controller.rb
@@ -77,7 +77,7 @@ class LettingsLogsController < LogsController
 
     @log.discard!
 
-    redirect_to lettings_logs_path, notice: "Log #{@log.id} has been deleted"
+    redirect_to lettings_logs_path, notice: "Log #{@log.id} has been deleted."
   end
 
   def delete_confirmation
diff --git a/app/controllers/sales_logs_controller.rb b/app/controllers/sales_logs_controller.rb
index 7c5083265..f7c69ec87 100644
--- a/app/controllers/sales_logs_controller.rb
+++ b/app/controllers/sales_logs_controller.rb
@@ -51,7 +51,7 @@ class SalesLogsController < LogsController
 
     @log.discard!
 
-    redirect_to sales_logs_path, notice: "Log #{@log.id} has been deleted"
+    redirect_to sales_logs_path, notice: "Log #{@log.id} has been deleted."
   end
 
   def delete_confirmation
diff --git a/app/helpers/duplicate_logs_helper.rb b/app/helpers/duplicate_logs_helper.rb
new file mode 100644
index 000000000..b73fc5cf3
--- /dev/null
+++ b/app/helpers/duplicate_logs_helper.rb
@@ -0,0 +1,25 @@
+module DuplicateLogsHelper
+  include GovukLinkHelper
+
+  def duplicate_logs_continue_button(all_duplicates, duplicate_log, original_log_id)
+    if all_duplicates.count > 1
+      return govuk_button_link_to "Keep this log and delete duplicates", url_for(
+        controller: "duplicate_logs",
+        action: "delete_duplicates",
+        "#{duplicate_log.class.name.underscore}_id": duplicate_log.id,
+        original_log_id:,
+      )
+    end
+
+    if original_log_id == duplicate_log.id
+      govuk_button_link_to "Back to Log #{duplicate_log.id}", send("#{duplicate_log.class.name.underscore}_path", duplicate_log)
+    else
+      type = duplicate_log.lettings? ? "lettings" : "sales"
+      govuk_button_link_to "Back to #{type} logs", url_for(duplicate_log.class)
+    end
+  end
+
+  def duplicate_logs_action_href(log, page_id, original_log_id)
+    send("#{log.model_name.param_key}_#{page_id}_path", log, referrer: "interruption_screen", original_log_id:)
+  end
+end
diff --git a/app/views/duplicate_logs/_duplicate_log_check_answers.erb b/app/views/duplicate_logs/_duplicate_log_check_answers.erb
index 15d4caf73..a5abaea16 100644
--- a/app/views/duplicate_logs/_duplicate_log_check_answers.erb
+++ b/app/views/duplicate_logs/_duplicate_log_check_answers.erb
@@ -29,7 +29,7 @@
 
           <% row.action(
             text: question.action_text(@log),
-            href: action_href(@log, question.page.id),
+            href: duplicate_logs_action_href(@log, question.page.id, @original_log_id),
             visually_hidden_text: question.check_answer_label.to_s.downcase,
           ) %>
         <% end %>
diff --git a/app/views/duplicate_logs/show.erb b/app/views/duplicate_logs/show.erb
deleted file mode 100644
index 04da14593..000000000
--- a/app/views/duplicate_logs/show.erb
+++ /dev/null
@@ -1,20 +0,0 @@
-<% content_for :title, "Check duplicate logs" %>
-<div class="govuk-grid-row">
-    <div class="govuk-grid-column-two-thirds">
-        <%= govuk_panel(
-            classes: "app-panel--interruption",
-        ) do %>
-            <p class="govuk-heading-l">These logs are duplicates</p>
-            <p class="govuk-body-l">These logs have the same values for the following fields. Choose one to keep or correct the answers.</p>
-        <% end %>
-
-        <% @all_duplicates.each_with_index do |log, index| %>
-            <%= render partial: "duplicate_log", locals: { log: log } %>
-            <%= render partial: "duplicate_log_check_answers", locals: { log: log } %>
-            <%= govuk_button_link_to "Keep this log and delete duplicates", "#" %>
-            <% if index < @all_duplicates.count - 1 %>
-                <hr class="govuk-section-break govuk-section-break--visible govuk-section-break--m">
-            <% end %>
-        <% end %>   
-    </div>
-</div>
diff --git a/app/views/duplicate_logs/show.html.erb b/app/views/duplicate_logs/show.html.erb
new file mode 100644
index 000000000..1a7dd8e86
--- /dev/null
+++ b/app/views/duplicate_logs/show.html.erb
@@ -0,0 +1,27 @@
+<% content_for :title, "Check duplicate logs" %>
+<div class="govuk-grid-row">
+    <div class="govuk-grid-column-two-thirds">
+        <% if @all_duplicates.count > 1 %>
+            <%= govuk_panel(
+                classes: "app-panel--interruption",
+              ) do %>
+                <p class="govuk-heading-l">These logs are duplicates</p>
+                <p class="govuk-body-l">These logs have the same values for the following fields. Choose one to keep or correct the answers.</p>
+            <% end %>
+        <% else %>
+            <h1 class="govuk-heading-l">Make sure these answers are correct</h1>
+            <p class="govuk-body">
+                This log had the same answers but it is no longer a duplicate. Make sure the answers are correct.
+            </p>
+        <% end %>
+
+        <% @all_duplicates.each_with_index do |log, index| %>
+            <%= render partial: "duplicate_log", locals: { log: } %>
+            <%= render partial: "duplicate_log_check_answers", locals: { log: } %>
+            <%= duplicate_logs_continue_button(@all_duplicates, log, @original_log_id) %>
+            <% if index < @all_duplicates.count - 1 %>
+                <hr class="govuk-section-break govuk-section-break--visible govuk-section-break--m">
+            <% end %>
+        <% end %>
+    </div>
+</div>
diff --git a/app/views/logs/delete_duplicates.html.erb b/app/views/logs/delete_duplicates.html.erb
new file mode 100644
index 000000000..5ba4459e2
--- /dev/null
+++ b/app/views/logs/delete_duplicates.html.erb
@@ -0,0 +1,40 @@
+<% content_for :before_content do %>
+  <% content_for :title, "Are you sure you want to delete #{@duplicate_logs.count == 1 ? 'this duplicate log' : 'these duplicate logs'}?" %>
+  <%= govuk_back_link href: @log.lettings? ? lettings_log_duplicate_logs_path(@log) : sales_log_duplicate_logs_path(@log) %>
+<% end %>
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-two-thirds-from-desktop">
+    <span class="govuk-caption-l">Delete duplicate logs</span>
+    <h1 class="govuk-heading-l">
+      <%= content_for(:title) %>
+    </h1>
+
+    <%= govuk_warning_text(text: "You will not be able to undo this action.") %>
+
+    <p class="govuk-body govuk-!-margin-bottom-2">
+      <%= @duplicate_logs.count == 1 ? "This log" : "These logs" %> will be deleted:
+    </p>
+    <ul class="govuk-list govuk-!-margin-bottom-6">
+      <% @duplicate_logs.each do |duplicate_log| %>
+        <li>
+          <strong>
+            <%= govuk_link_to "Log #{duplicate_log.id}", url_for(duplicate_log) %>
+          </strong>
+        </li>
+      <% end %>
+    </ul>
+
+    <div class="govuk-button-group">
+      <%= govuk_button_to @duplicate_logs.count == 1 ? "Delete this log" : "Delete these logs",
+        send("delete_logs_#{@log.class.name.underscore}s_path"),
+        method: "delete",
+        params: { ids: @duplicate_logs.map(&:id), original_log_id: @original_log_id, remaining_log_id: @log.id } %>
+      <%= govuk_button_link_to(
+        "Cancel",
+        send("#{@log.class.name.underscore}_duplicate_logs_path", @log),
+        secondary: true,
+      ) %>
+    </div>
+  </div>
+</div>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index ec73f2906..e3507b9e5 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -180,8 +180,11 @@ en:
 
   notification:
     logs_deleted:
-      one: "%{count} log has been deleted"
-      other: "%{count} logs have been deleted"
+      one: "%{count} log has been deleted."
+      other: "%{count} logs have been deleted."
+    duplicate_logs_deleted:
+      one: "%{log_ids} has been deleted."
+      other: "%{log_ids} have been deleted."
 
   validations:
     organisation:
diff --git a/config/routes.rb b/config/routes.rb
index 4da2e007e..d509fc392 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -173,6 +173,7 @@ Rails.application.routes.draw do
   resources :lettings_logs, path: "/lettings-logs" do
     get "delete-confirmation", to: "lettings_logs#delete_confirmation"
     get "duplicate-logs", to: "duplicate_logs#show"
+    get "delete-duplicates", to: "duplicate_logs#delete_duplicates"
 
     collection do
       post "bulk-upload", to: "bulk_upload#bulk_upload"
@@ -239,6 +240,7 @@ Rails.application.routes.draw do
   resources :sales_logs, path: "/sales-logs" do
     get "delete-confirmation", to: "sales_logs#delete_confirmation"
     get "duplicate-logs", to: "duplicate_logs#show"
+    get "delete-duplicates", to: "duplicate_logs#delete_duplicates"
 
     collection do
       get "csv-download", to: "sales_logs#download_csv"
diff --git a/spec/factories/lettings_log.rb b/spec/factories/lettings_log.rb
index 9cf6232d4..ae203b79e 100644
--- a/spec/factories/lettings_log.rb
+++ b/spec/factories/lettings_log.rb
@@ -39,6 +39,8 @@ FactoryBot.define do
       needstype { 1 }
       tenancycode { "same tenancy code" }
       postcode_full { "A1 1AA" }
+      uprn_known { 0 }
+      declaration { 1 }
       age1 { 18 }
       sex1 { "M" }
       ecstat1 { 0 }
diff --git a/spec/factories/sales_log.rb b/spec/factories/sales_log.rb
index dbfc8e418..54687c928 100644
--- a/spec/factories/sales_log.rb
+++ b/spec/factories/sales_log.rb
@@ -46,6 +46,7 @@ FactoryBot.define do
       ecstat1 { 1 }
       postcode_full { "A1 1AA" }
       privacynotice { 1 }
+      uprn_known { 0 }
     end
     trait :completed do
       purchid { rand(999_999_999).to_s }
diff --git a/spec/features/lettings_log_spec.rb b/spec/features/lettings_log_spec.rb
index f74091f5b..da1f89a23 100644
--- a/spec/features/lettings_log_spec.rb
+++ b/spec/features/lettings_log_spec.rb
@@ -434,5 +434,65 @@ RSpec.describe "Lettings Log Features" do
         expect(page).to have_current_path("/lettings-logs")
       end
     end
+
+    context "when a log becomes a duplicate" do
+      let(:lettings_log) { create(:lettings_log, :duplicate, owning_organisation: user.organisation, created_by: user) }
+      let!(:duplicate_log) { create(:lettings_log, :duplicate, owning_organisation: user.organisation, created_by: user) }
+
+      before do
+        lettings_log.update!(tenancycode: "different")
+        visit("/lettings-logs/#{lettings_log.id}/tenant-code")
+        fill_in("lettings-log-tenancycode-field", with: duplicate_log.tenancycode)
+        click_button("Save and continue")
+      end
+
+      it "allows keeping the original log and deleting duplicates" do
+        expect(page).to have_current_path("/lettings-logs/#{lettings_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
+        click_link("Keep this log and delete duplicates", href: "/lettings-logs/#{lettings_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+        expect(page).to have_current_path("/lettings-logs/#{lettings_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+        click_button "Delete this log"
+        duplicate_log.reload
+        expect(duplicate_log.deleted?).to be true
+        expect(page).to have_css(".govuk-notification-banner.govuk-notification-banner--success")
+        expect(page).to have_content("Log #{duplicate_log.id} has been deleted.")
+        expect(page).to have_current_path("/lettings-logs/#{lettings_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
+        expect(page).not_to have_content("These logs are duplicates")
+        expect(page).not_to have_link("Keep this log and delete duplicates")
+        expect(page).to have_link("Back to Log #{lettings_log.id}", href: "/lettings-logs/#{lettings_log.id}")
+      end
+
+      it "allows changing answers on remaining original log" do
+        click_link("Keep this log and delete duplicates", href: "/lettings-logs/#{lettings_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+        click_button "Delete this log"
+        click_link("Change", href: "/lettings-logs/#{lettings_log.id}/tenant-code?original_log_id=#{lettings_log.id}&referrer=interruption_screen")
+        click_button("Save and continue")
+        expect(page).to have_current_path("/lettings-logs/#{lettings_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
+        expect(page).to have_link("Back to Log #{lettings_log.id}", href: "/lettings-logs/#{lettings_log.id}")
+      end
+
+      it "allows keeping the duplicate log and deleting the original one" do
+        expect(page).to have_current_path("/lettings-logs/#{lettings_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
+        click_link("Keep this log and delete duplicates", href: "/lettings-logs/#{duplicate_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+        expect(page).to have_current_path("/lettings-logs/#{duplicate_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+        click_button "Delete this log"
+        lettings_log.reload
+        expect(lettings_log.status).to eq("deleted")
+        expect(page).to have_css(".govuk-notification-banner.govuk-notification-banner--success")
+        expect(page).to have_content("Log #{lettings_log.id} has been deleted.")
+        expect(page).to have_current_path("/lettings-logs/#{duplicate_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
+        expect(page).not_to have_content("These logs are duplicates")
+        expect(page).not_to have_link("Keep this log and delete duplicates")
+        expect(page).to have_link("Back to lettings logs", href: "/lettings-logs")
+      end
+
+      it "allows changing answers to remaining duplicate log" do
+        click_link("Keep this log and delete duplicates", href: "/lettings-logs/#{duplicate_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+        click_button "Delete this log"
+        click_link("Change", href: "/lettings-logs/#{duplicate_log.id}/tenant-code?original_log_id=#{lettings_log.id}&referrer=interruption_screen")
+        click_button("Save and continue")
+        expect(page).to have_current_path("/lettings-logs/#{duplicate_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
+        expect(page).to have_link("Back to lettings logs", href: "/lettings-logs")
+      end
+    end
   end
 end
diff --git a/spec/features/sales_log_spec.rb b/spec/features/sales_log_spec.rb
index 9a2fec455..e88ecd0e0 100644
--- a/spec/features/sales_log_spec.rb
+++ b/spec/features/sales_log_spec.rb
@@ -182,4 +182,67 @@ RSpec.describe "Sales Log Features" do
       end
     end
   end
+
+  context "when a log becomes a duplicate" do
+    let(:user) { create(:user, :data_coordinator) }
+    let(:sales_log) { create(:sales_log, :duplicate, created_by: user) }
+    let!(:duplicate_log) { create(:sales_log, :duplicate, created_by: user) }
+
+    before do
+      allow(user).to receive(:need_two_factor_authentication?).and_return(false)
+      sign_in user
+      sales_log.update!(purchid: "different")
+      visit("/sales-logs/#{sales_log.id}/purchaser-code")
+      fill_in("sales-log-purchid-field", with: duplicate_log.purchid)
+      click_button("Save and continue")
+    end
+
+    it "allows keeping the original log and deleting duplicates" do
+      expect(page).to have_current_path("/sales-logs/#{sales_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
+      click_link("Keep this log and delete duplicates", href: "/sales-logs/#{sales_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+      expect(page).to have_current_path("/sales-logs/#{sales_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+      click_button "Delete this log"
+      duplicate_log.reload
+      expect(duplicate_log.deleted?).to be true
+      expect(page).to have_css(".govuk-notification-banner.govuk-notification-banner--success")
+      expect(page).to have_content("Log #{duplicate_log.id} has been deleted.")
+      expect(page).to have_current_path("/sales-logs/#{sales_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
+      expect(page).not_to have_content("These logs are duplicates")
+      expect(page).not_to have_link("Keep this log and delete duplicates")
+      expect(page).to have_link("Back to Log #{sales_log.id}", href: "/sales-logs/#{sales_log.id}")
+    end
+
+    it "allows changing answer on remaining original log" do
+      click_link("Keep this log and delete duplicates", href: "/sales-logs/#{sales_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+      click_button "Delete this log"
+      click_link("Change", href: "/sales-logs/#{sales_log.id}/purchaser-code?original_log_id=#{sales_log.id}&referrer=interruption_screen")
+      click_button("Save and continue")
+      expect(page).to have_current_path("/sales-logs/#{sales_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
+      expect(page).to have_link("Back to Log #{sales_log.id}", href: "/sales-logs/#{sales_log.id}")
+    end
+
+    it "allows keeping the duplicate log and deleting the original one" do
+      expect(page).to have_current_path("/sales-logs/#{sales_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
+      click_link("Keep this log and delete duplicates", href: "/sales-logs/#{duplicate_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+      expect(page).to have_current_path("/sales-logs/#{duplicate_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+      click_button "Delete this log"
+      sales_log.reload
+      expect(sales_log.status).to eq("deleted")
+      expect(page).to have_css(".govuk-notification-banner.govuk-notification-banner--success")
+      expect(page).to have_content("Log #{sales_log.id} has been deleted.")
+      expect(page).to have_current_path("/sales-logs/#{duplicate_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
+      expect(page).not_to have_content("These logs are duplicates")
+      expect(page).not_to have_link("Keep this log and delete duplicates")
+      expect(page).to have_link("Back to sales logs", href: "/sales-logs")
+    end
+
+    it "allows changing answers on remaining duplicate log" do
+      click_link("Keep this log and delete duplicates", href: "/sales-logs/#{duplicate_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+      click_button "Delete this log"
+      click_link("Change", href: "/sales-logs/#{duplicate_log.id}/purchaser-code?original_log_id=#{sales_log.id}&referrer=interruption_screen")
+      click_button("Save and continue")
+      expect(page).to have_current_path("/sales-logs/#{duplicate_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
+      expect(page).to have_link("Back to sales logs", href: "/sales-logs")
+    end
+  end
 end
diff --git a/spec/requests/delete_logs_controller_spec.rb b/spec/requests/delete_logs_controller_spec.rb
index 9a90a9d87..5d3f703bf 100644
--- a/spec/requests/delete_logs_controller_spec.rb
+++ b/spec/requests/delete_logs_controller_spec.rb
@@ -230,7 +230,7 @@ RSpec.describe "DeleteLogs", type: :request do
         expect(response).to redirect_to lettings_logs_path
         follow_redirect!
         expect(page).to have_selector(".govuk-notification-banner--success")
-        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted")
+        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted.")
       end
     end
 
@@ -470,7 +470,7 @@ RSpec.describe "DeleteLogs", type: :request do
         expect(response).to redirect_to sales_logs_path
         follow_redirect!
         expect(page).to have_selector(".govuk-notification-banner--success")
-        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted")
+        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted.")
       end
     end
 
@@ -714,7 +714,7 @@ RSpec.describe "DeleteLogs", type: :request do
         expect(response).to redirect_to lettings_logs_organisation_path(id: organisation)
         follow_redirect!
         expect(page).to have_selector(".govuk-notification-banner--success")
-        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted")
+        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted.")
       end
     end
 
@@ -939,7 +939,7 @@ RSpec.describe "DeleteLogs", type: :request do
         expect(response).to redirect_to sales_logs_organisation_path(id: organisation)
         follow_redirect!
         expect(page).to have_selector(".govuk-notification-banner--success")
-        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted")
+        expect(page).to have_selector(".govuk-notification-banner--success", text: "2 logs have been deleted.")
       end
     end
   end
diff --git a/spec/requests/duplicate_logs_controller_spec.rb b/spec/requests/duplicate_logs_controller_spec.rb
index 3ba94c218..1de8af9ae 100644
--- a/spec/requests/duplicate_logs_controller_spec.rb
+++ b/spec/requests/duplicate_logs_controller_spec.rb
@@ -2,110 +2,251 @@ require "rails_helper"
 
 RSpec.describe DuplicateLogsController, type: :request do
   let(:page) { Capybara::Node::Simple.new(response.body) }
-  let(:user) { create(:user) }
-
-  context "when a user is signed in" do
-    let(:lettings_log) do
-      create(
-        :lettings_log,
-        :completed,
-        created_by: user,
-      )
+  let(:user) { create(:user, :data_coordinator) }
+  let(:lettings_log) { create(:lettings_log, :duplicate, created_by: user) }
+  let(:sales_log) { create(:sales_log, :duplicate, created_by: user) }
+
+  describe "GET show" do
+    context "when user is not signed in" do
+      it "redirects to sign in page" do
+        get "/lettings-logs/#{lettings_log.id}/duplicate-logs"
+        expect(response).to redirect_to("/account/sign-in")
+      end
     end
-    let(:sales_log) do
-      create(
-        :sales_log,
-        :completed,
-        created_by: user,
-      )
+
+    context "when the user is from different organisation" do
+      let(:other_user) { create(:user) }
+
+      before do
+        allow(other_user).to receive(:need_two_factor_authentication?).and_return(false)
+        sign_in other_user
+      end
+
+      it "renders page not found" do
+        get "/lettings-logs/#{lettings_log.id}/duplicate-logs"
+        expect(response).to have_http_status(:not_found)
+      end
     end
 
-    describe "GET" do
-      context "when user is not signed in" do
-        it "redirects to sign in page" do
-          get "/lettings-logs/#{lettings_log.id}/duplicate-logs"
-          expect(response).to redirect_to("/account/sign-in")
-        end
+    context "when user is signed in" do
+      before do
+        allow(user).to receive(:need_two_factor_authentication?).and_return(false)
+        sign_in user
       end
 
-      context "when the user is from different organisation" do
-        let(:other_user) { create(:user) }
+      context "with multiple duplicate lettings logs" do
+        let(:duplicate_logs) { create_list(:lettings_log, 2, :completed) }
 
         before do
-          allow(other_user).to receive(:need_two_factor_authentication?).and_return(false)
-          sign_in other_user
+          allow(LettingsLog).to receive(:duplicate_logs).and_return(duplicate_logs)
+          get "/lettings-logs/#{lettings_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}"
+        end
+
+        it "displays links to all the duplicate logs" do
+          expect(page).to have_link("Log #{lettings_log.id}", href: "/lettings-logs/#{lettings_log.id}")
+          expect(page).to have_link("Log #{duplicate_logs.first.id}", href: "/lettings-logs/#{duplicate_logs.first.id}")
+          expect(page).to have_link("Log #{duplicate_logs.second.id}", href: "/lettings-logs/#{duplicate_logs.second.id}")
+        end
+
+        it "displays check your answers for each log with correct questions" do
+          expect(page).to have_content("Q5 - Tenancy start date", count: 3)
+          expect(page).to have_content("Q7 - Tenant code", count: 3)
+          expect(page).to have_content("Q12 - Postcode", count: 3)
+          expect(page).to have_content("Q32 - Lead tenant’s age", count: 3)
+          expect(page).to have_content("Q33 - Lead tenant’s gender identity", count: 3)
+          expect(page).to have_content("Q37 - Lead tenant’s working situation", count: 3)
+          expect(page).to have_content("Household rent and charges", count: 3)
+          expect(page).to have_link("Change", count: 21)
         end
 
-        it "renders page not found" do
-          get "/lettings-logs/#{lettings_log.id}/duplicate-logs"
-          expect(response).to have_http_status(:not_found)
+        it "displays buttons to delete" do
+          expect(page).to have_link("Keep this log and delete duplicates", count: 3)
+          expect(page).to have_link("Keep this log and delete duplicates", href: "/lettings-logs/#{lettings_log.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+          expect(page).to have_link("Keep this log and delete duplicates", href: "/lettings-logs/#{duplicate_logs.first.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
+          expect(page).to have_link("Keep this log and delete duplicates", href: "/lettings-logs/#{duplicate_logs.second.id}/delete-duplicates?original_log_id=#{lettings_log.id}")
         end
       end
 
-      context "when user is signed in" do
+      context "with multiple duplicate sales logs" do
+        let(:duplicate_logs) { create_list(:sales_log, 2, :completed) }
+
         before do
-          allow(user).to receive(:need_two_factor_authentication?).and_return(false)
-          sign_in user
+          allow(SalesLog).to receive(:duplicate_logs).and_return(duplicate_logs)
+          get "/sales-logs/#{sales_log.id}/duplicate-logs?original_log_id=#{sales_log.id}"
         end
 
-        context "with multiple duplicate lettings logs" do
-          let(:duplicate_logs) { create_list(:lettings_log, 2, :completed) }
-
-          before do
-            allow(LettingsLog).to receive(:duplicate_logs).and_return(duplicate_logs)
-            get "/lettings-logs/#{lettings_log.id}/duplicate-logs"
-          end
-
-          it "displays links to all the duplicate logs" do
-            expect(page).to have_link("Log #{lettings_log.id}", href: "/lettings-logs/#{lettings_log.id}")
-            expect(page).to have_link("Log #{duplicate_logs.first.id}", href: "/lettings-logs/#{duplicate_logs.first.id}")
-            expect(page).to have_link("Log #{duplicate_logs.second.id}", href: "/lettings-logs/#{duplicate_logs.second.id}")
-          end
-
-          it "displays check your answers for each log with correct questions" do
-            expect(page).to have_content("Q5 - Tenancy start date", count: 3)
-            expect(page).to have_content("Q7 - Tenant code", count: 3)
-            expect(page).to have_content("Q12 - Postcode", count: 3)
-            expect(page).to have_content("Q32 - Lead tenant’s age", count: 3)
-            expect(page).to have_content("Q33 - Lead tenant’s gender identity", count: 3)
-            expect(page).to have_content("Q37 - Lead tenant’s working situation", count: 3)
-            expect(page).to have_content("Household rent and charges", count: 3)
-            expect(page).to have_link("Change", count: 21)
-          end
-
-          it "displays buttons to delete" do
-            expect(page).to have_link("Keep this log and delete duplicates", count: 3)
-          end
+        it "displays links to all the duplicate logs" do
+          expect(page).to have_link("Log #{sales_log.id}", href: "/sales-logs/#{sales_log.id}")
+          expect(page).to have_link("Log #{duplicate_logs.first.id}", href: "/sales-logs/#{duplicate_logs.first.id}")
+          expect(page).to have_link("Log #{duplicate_logs.second.id}", href: "/sales-logs/#{duplicate_logs.second.id}")
         end
 
-        context "with multiple duplicate sales logs" do
-          let(:duplicate_logs) { create_list(:sales_log, 2, :completed) }
-
-          before do
-            allow(SalesLog).to receive(:duplicate_logs).and_return(duplicate_logs)
-            get "/sales-logs/#{sales_log.id}/duplicate-logs"
-          end
-
-          it "displays links to all the duplicate logs" do
-            expect(page).to have_link("Log #{sales_log.id}", href: "/sales-logs/#{sales_log.id}")
-            expect(page).to have_link("Log #{duplicate_logs.first.id}", href: "/sales-logs/#{duplicate_logs.first.id}")
-            expect(page).to have_link("Log #{duplicate_logs.second.id}", href: "/sales-logs/#{duplicate_logs.second.id}")
-          end
-
-          it "displays check your answers for each log with correct questions" do
-            expect(page).to have_content("Q1 - Sale completion date", count: 3)
-            expect(page).to have_content("Q2 - Purchaser code", count: 3)
-            expect(page).to have_content("Q20 - Lead buyer’s age", count: 3)
-            expect(page).to have_content("Q21 - Buyer 1’s gender identity", count: 3)
-            expect(page).to have_content("Q25 - Buyer 1's working situation", count: 3)
-            expect(page).to have_content("Q15 - Postcode", count: 3)
-            expect(page).to have_link("Change", count: 18)
-          end
-
-          it "displays buttons to delete" do
-            expect(page).to have_link("Keep this log and delete duplicates", count: 3)
-          end
+        it "displays check your answers for each log with correct questions" do
+          expect(page).to have_content("Q1 - Sale completion date", count: 3)
+          expect(page).to have_content("Q2 - Purchaser code", count: 3)
+          expect(page).to have_content("Q20 - Lead buyer’s age", count: 3)
+          expect(page).to have_content("Q21 - Buyer 1’s gender identity", count: 3)
+          expect(page).to have_content("Q25 - Buyer 1's working situation", count: 3)
+          expect(page).to have_content("Q15 - Postcode", count: 3)
+          expect(page).to have_link("Change", count: 18)
         end
+
+        it "displays buttons to delete" do
+          expect(page).to have_link("Keep this log and delete duplicates", count: 3)
+          expect(page).to have_link("Keep this log and delete duplicates", href: "/sales-logs/#{sales_log.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+          expect(page).to have_link("Keep this log and delete duplicates", href: "/sales-logs/#{duplicate_logs.first.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+          expect(page).to have_link("Keep this log and delete duplicates", href: "/sales-logs/#{duplicate_logs.second.id}/delete-duplicates?original_log_id=#{sales_log.id}")
+        end
+      end
+    end
+  end
+
+  describe "GET sales delete-duplicates" do
+    let(:headers) { { "Accept" => "text/html" } }
+    let(:id) { sales_log.id }
+    let(:request) { get "/sales-logs/#{id}/delete-duplicates?original_log_id=#{id}" }
+
+    before do
+      allow(user).to receive(:need_two_factor_authentication?).and_return(false)
+      sign_in user
+    end
+
+    context "when there are no duplicate logs" do
+      it "renders not found" do
+        request
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    context "when there is 1 duplicate log being deleted" do
+      let!(:duplicate_log) { create(:sales_log, :duplicate, created_by: user) }
+
+      it "renders page" do
+        request
+        expect(response).to have_http_status(:ok)
+
+        expect(page).to have_content("Are you sure you want to delete this duplicate log?")
+        expect(page).to have_button(text: "Delete this log")
+        expect(page).to have_link(text: "Log #{duplicate_log.id}", href: sales_log_path(duplicate_log.id))
+        expect(page).not_to have_link(text: "Log #{id}", href: sales_log_path(id))
+        expect(page).to have_link(text: "Cancel", href: sales_log_duplicate_logs_path(id))
+        expect(page).to have_link(text: "Back", href: sales_log_duplicate_logs_path(id))
+      end
+    end
+
+    context "when there are multiple duplicate logs being deleted" do
+      let!(:duplicate_log) { create(:sales_log, :duplicate, created_by: user) }
+      let!(:duplicate_log_2) { create(:sales_log, :duplicate, created_by: user) }
+
+      it "renders page" do
+        request
+        expect(response).to have_http_status(:ok)
+
+        expect(page).to have_content("Are you sure you want to delete these duplicate logs?")
+        expect(page).to have_content("These logs will be deleted:")
+        expect(page).to have_button(text: "Delete these logs")
+        expect(page).to have_link(text: "Log #{duplicate_log.id}", href: sales_log_path(duplicate_log.id))
+        expect(page).to have_link(text: "Log #{duplicate_log_2.id}", href: sales_log_path(duplicate_log_2.id))
+        expect(page).to have_link(text: "Cancel", href: sales_log_duplicate_logs_path(id))
+        expect(page).to have_link(text: "Back", href: sales_log_duplicate_logs_path(id))
+      end
+    end
+
+    context "when log does not exist" do
+      let(:id) { -1 }
+
+      it "returns 404" do
+        request
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    context "when user is not authorised" do
+      let(:other_user) { create(:user) }
+
+      before do
+        allow(other_user).to receive(:need_two_factor_authentication?).and_return(false)
+        sign_in other_user
+      end
+
+      it "returns 404" do
+        request
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+  end
+
+  describe "GET lettings delete-duplicates" do
+    let(:id) { lettings_log.id }
+    let(:request) { get "/lettings-logs/#{id}/delete-duplicates?original_log_id=#{id}" }
+
+    before do
+      allow(user).to receive(:need_two_factor_authentication?).and_return(false)
+      sign_in user
+    end
+
+    context "when there are no duplicate logs" do
+      it "renders page not found" do
+        request
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    context "when there is 1 duplicate log being deleted" do
+      let!(:duplicate_log) { create(:lettings_log, :duplicate, created_by: user) }
+
+      it "renders page" do
+        request
+        expect(response).to have_http_status(:ok)
+
+        expect(page).to have_content("Are you sure you want to delete this duplicate log?")
+        expect(page).to have_content("This log will be deleted:")
+        expect(page).to have_button(text: "Delete this log")
+        expect(page).to have_link(text: "Log #{duplicate_log.id}", href: lettings_log_path(duplicate_log.id))
+        expect(page).not_to have_link(text: "Log #{id}", href: lettings_log_path(id))
+        expect(page).to have_link(text: "Cancel", href: lettings_log_duplicate_logs_path(id))
+        expect(page).to have_link(text: "Back", href: lettings_log_duplicate_logs_path(id))
+      end
+    end
+
+    context "when there are multiple duplicate logs being deleted" do
+      let!(:duplicate_log) { create(:lettings_log, :duplicate, created_by: user) }
+      let!(:duplicate_log_2) { create(:lettings_log, :duplicate, created_by: user) }
+
+      it "renders page" do
+        request
+        expect(response).to have_http_status(:ok)
+
+        expect(page).to have_content("Are you sure you want to delete these duplicate logs?")
+        expect(page).to have_content("These logs will be deleted:")
+        expect(page).to have_button(text: "Delete these logs")
+        expect(page).to have_link(text: "Log #{duplicate_log.id}", href: lettings_log_path(duplicate_log.id))
+        expect(page).to have_link(text: "Log #{duplicate_log_2.id}", href: lettings_log_path(duplicate_log_2.id))
+        expect(page).to have_link(text: "Cancel", href: lettings_log_duplicate_logs_path(id))
+        expect(page).to have_link(text: "Back", href: lettings_log_duplicate_logs_path(id))
+      end
+    end
+
+    context "when log does not exist" do
+      let(:id) { -1 }
+
+      it "returns 404" do
+        request
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    context "when user is not authorised" do
+      let(:other_user) { create(:user) }
+
+      before do
+        allow(other_user).to receive(:need_two_factor_authentication?).and_return(false)
+        sign_in other_user
+      end
+
+      it "returns 404" do
+        request
+        expect(response).to have_http_status(:not_found)
       end
     end
   end
diff --git a/spec/requests/form_controller_spec.rb b/spec/requests/form_controller_spec.rb
index 78ca078ca..8f16efcca 100644
--- a/spec/requests/form_controller_spec.rb
+++ b/spec/requests/form_controller_spec.rb
@@ -568,7 +568,7 @@ RSpec.describe FormController, type: :request do
             end
 
             it "redirects to the duplicate logs page" do
-              expect(response).to redirect_to("/lettings-logs/#{lettings_log.id}/duplicate-logs")
+              expect(response).to redirect_to("/lettings-logs/#{lettings_log.id}/duplicate-logs?original_log_id=#{lettings_log.id}")
               follow_redirect!
               expect(page).to have_content("These logs are duplicates")
             end
@@ -601,7 +601,7 @@ RSpec.describe FormController, type: :request do
             end
 
             it "redirects to the duplicate logs page" do
-              expect(response).to redirect_to("/sales-logs/#{sales_log.id}/duplicate-logs")
+              expect(response).to redirect_to("/sales-logs/#{sales_log.id}/duplicate-logs?original_log_id=#{sales_log.id}")
               follow_redirect!
               expect(page).to have_content("These logs are duplicates")
             end
diff --git a/spec/requests/lettings_logs_controller_spec.rb b/spec/requests/lettings_logs_controller_spec.rb
index 688639339..e6faf2b57 100644
--- a/spec/requests/lettings_logs_controller_spec.rb
+++ b/spec/requests/lettings_logs_controller_spec.rb
@@ -1432,7 +1432,7 @@ RSpec.describe LettingsLogsController, type: :request do
         delete_request
         expect(response).to redirect_to(lettings_logs_path)
         follow_redirect!
-        expect(page).to have_content("Log #{id} has been deleted")
+        expect(page).to have_content("Log #{id} has been deleted.")
       end
 
       it "marks the log as deleted" do
diff --git a/spec/requests/sales_logs_controller_spec.rb b/spec/requests/sales_logs_controller_spec.rb
index d481752b3..cba885d55 100644
--- a/spec/requests/sales_logs_controller_spec.rb
+++ b/spec/requests/sales_logs_controller_spec.rb
@@ -904,7 +904,7 @@ RSpec.describe SalesLogsController, type: :request do
         delete_request
         expect(response).to redirect_to(sales_logs_path)
         follow_redirect!
-        expect(page).to have_content("Log #{id} has been deleted")
+        expect(page).to have_content("Log #{id} has been deleted.")
       end
 
       it "marks the log as deleted" do