diff --git a/app/models/organisation.rb b/app/models/organisation.rb
index e17d0d6eb..23fbec04f 100644
--- a/app/models/organisation.rb
+++ b/app/models/organisation.rb
@@ -133,14 +133,23 @@ class Organisation < ApplicationRecord
     :active
   end
 
-  def duplicate_lettings_logs_sets
-    lettings_logs.duplicate_sets.map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+  def editable_duplicate_lettings_logs_sets
+    all_sets = lettings_logs.duplicate_sets.map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+    editable_sets = []
+    all_sets.each do |set|
+      editable_sets << set if LettingsLog.find(set.first).collection_period_open_for_editing?
+    end
+    editable_sets
   end
 
-  def duplicate_sales_logs_sets
-    sales_logs.duplicate_sets.map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+  def editable_duplicate_sales_logs_sets
+    all_sets = sales_logs.duplicate_sets.map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+    editable_sets = []
+    all_sets.each do |set|
+      editable_sets << set if SalesLog.find(set.first).collection_period_open_for_editing?
+    end
+    editable_sets
   end
-
   def recently_absorbed_organisations_grouped_by_merge_date
     return unless absorbed_organisations.present? && absorbed_organisations.merged_during_open_collection_period.present?
 
diff --git a/app/models/user.rb b/app/models/user.rb
index 7042034b4..a6934672f 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -203,12 +203,22 @@ class User < ApplicationRecord
     super && active?
   end
 
-  def duplicate_lettings_logs_sets
-    lettings_logs.duplicate_sets(id).map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+  def editable_duplicate_lettings_logs_sets
+    all_sets = lettings_logs.duplicate_sets(id).map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+    editable_sets = []
+    all_sets.each do |set|
+      editable_sets << set if LettingsLog.find(set.first).collection_period_open_for_editing?
+    end
+    editable_sets
   end
 
-  def duplicate_sales_logs_sets
-    sales_logs.duplicate_sets(id).map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+  def editable_duplicate_sales_logs_sets
+    all_sets = sales_logs.duplicate_sets(id).map { |array_str| array_str ? array_str.map(&:to_i) : [] }
+    editable_sets = []
+    all_sets.each do |set|
+      editable_sets << set if SalesLog.find(set.first).collection_period_open_for_editing?
+    end
+    editable_sets
   end
 
 protected