diff --git a/app/services/bulk_upload/lettings/year2023/row_parser.rb b/app/services/bulk_upload/lettings/year2023/row_parser.rb
index 3c5069063..094c63d45 100644
--- a/app/services/bulk_upload/lettings/year2023/row_parser.rb
+++ b/app/services/bulk_upload/lettings/year2023/row_parser.rb
@@ -415,7 +415,13 @@ class BulkUpload::Lettings::Year2023::RowParser
       fields = field_mapping_for_errors[error.attribute] || []
 
       fields.each do |field|
-        unless errors.include?(field)
+        next if errors.include?(field)
+
+        question = log.form.get_question(error.attribute, log)
+
+        if question.present? && setup_question?(question)
+          errors.add(field, error.message, category: :setup)
+        else
           errors.add(field, error.message)
         end
       end
diff --git a/app/services/bulk_upload/sales/year2023/row_parser.rb b/app/services/bulk_upload/sales/year2023/row_parser.rb
index d5dca1c04..6ed79f3af 100644
--- a/app/services/bulk_upload/sales/year2023/row_parser.rb
+++ b/app/services/bulk_upload/sales/year2023/row_parser.rb
@@ -509,7 +509,13 @@ class BulkUpload::Sales::Year2023::RowParser
       fields = field_mapping_for_errors[error.attribute] || []
 
       fields.each do |field|
-        unless errors.include?(field)
+        next if errors.include?(field)
+
+        question = log.form.get_question(error.attribute, log)
+
+        if question.present? && setup_question?(question)
+          errors.add(field, error.message, category: :setup)
+        else
           errors.add(field, error.message)
         end
       end
diff --git a/spec/services/bulk_upload/lettings/year2023/row_parser_spec.rb b/spec/services/bulk_upload/lettings/year2023/row_parser_spec.rb
index 8ced94e45..d172321df 100644
--- a/spec/services/bulk_upload/lettings/year2023/row_parser_spec.rb
+++ b/spec/services/bulk_upload/lettings/year2023/row_parser_spec.rb
@@ -1465,6 +1465,29 @@ RSpec.describe BulkUpload::Lettings::Year2023::RowParser do
           expect(parser.errors.where(:field_3)).not_to be_present
         end
       end
+
+      context "when user's org has absorbed owning organisation before the startdate" do
+        let(:merged_org) { create(:organisation, :with_old_visible_id, holds_own_stock: true) }
+
+        let(:attributes) { setup_section_params.merge({ field_1: merged_org.old_visible_id, field_2: merged_org.old_visible_id, field_3: user.email }) }
+
+        before do
+          merged_org.update!(absorbing_organisation: user.organisation, merge_date: Time.zone.today - 5.years)
+          merged_org.reload
+          user.organisation.reload
+        end
+
+        it "is not permitted" do
+          parser = described_class.new(attributes)
+
+          parser.valid?
+          expect(parser.errors[:field_1]).to include(/The owning organisation must be active on the tenancy start date/)
+          expect(parser.errors[:field_2]).to include(/The managing organisation must be active on the tenancy start date/)
+          expect(parser.errors[:field_7]).to include(/Enter a date when the owning and managing organisation was active/)
+          expect(parser.errors[:field_8]).to include(/Enter a date when the owning and managing organisation was active/)
+          expect(parser.errors[:field_9]).to include(/Enter a date when the owning and managing organisation was active/)
+        end
+      end
     end
 
     describe "#field_2" do # managing org
diff --git a/spec/services/bulk_upload/sales/year2023/row_parser_spec.rb b/spec/services/bulk_upload/sales/year2023/row_parser_spec.rb
index 58a077a1b..6f617b584 100644
--- a/spec/services/bulk_upload/sales/year2023/row_parser_spec.rb
+++ b/spec/services/bulk_upload/sales/year2023/row_parser_spec.rb
@@ -420,6 +420,29 @@ RSpec.describe BulkUpload::Sales::Year2023::RowParser do
           expect(parser.errors.where(:field_2)).not_to be_present
         end
       end
+
+      context "when user's org has absorbed owning organisation before the startdate" do
+        let(:merged_org) { create(:organisation, :with_old_visible_id, holds_own_stock: true) }
+
+        let(:attributes) { setup_section_params.merge({ field_1: merged_org.old_visible_id, field_2: user.email }) }
+
+        before do
+          merged_org.update!(absorbing_organisation: user.organisation, merge_date: Time.zone.today - 3.years)
+          merged_org.reload
+          user.organisation.reload
+          user.reload
+        end
+
+        it "is not permitted" do
+          parser = described_class.new(attributes)
+
+          parser.valid?
+          expect(parser.errors[:field_1]).to include(/The owning organisation must be active on the sale completion date/)
+          expect(parser.errors[:field_3]).to include(/Enter a date when the owning organisation was active/)
+          expect(parser.errors[:field_4]).to include(/Enter a date when the owning organisation was active/)
+          expect(parser.errors[:field_5]).to include(/Enter a date when the owning organisation was active/)
+        end
+      end
     end
 
     describe "#field_2" do # username for created_by