diff --git a/app/services/imports/lettings_logs_field_import_service.rb b/app/services/imports/lettings_logs_field_import_service.rb
index 22fc0fe8e..61fe3e829 100644
--- a/app/services/imports/lettings_logs_field_import_service.rb
+++ b/app/services/imports/lettings_logs_field_import_service.rb
@@ -10,6 +10,8 @@ module Imports
         import_from(folder, :update_lettings_allocation)
       when "offered"
         import_from(folder, :update_offered)
+      when "creation_method"
+        import_from(folder, :update_creation_method)
       else
         raise "Updating #{field} is not supported by the field import service"
       end
@@ -36,6 +38,29 @@ module Imports
       end
     end
 
+    def update_creation_method(xml_doc)
+      old_id = meta_field_value(xml_doc, "document-id")
+      log = LettingsLog.find_by(old_id:)
+
+      if log
+        upload_method = meta_field_value(xml_doc, "upload-method")
+
+        case upload_method
+        when "Manual Entry"
+          @logger.info "lettings log with old id #{old_id} entered manually, no need for update"
+        when "Bulk Upload"
+          if log.creation_method == "bulk upload"
+            @logger.info "lettings log #{log.id} creation method already set to bulk upload, no need for update"
+          else
+            log.update!(creation_method: "bulk upload")
+            @logger.info "lettings log #{log.id} creation method set to bulk upload"
+          end
+        end
+      else
+        @logger.warn "lettings log with old id #{old_id} not found"
+      end
+    end
+
     def update_lettings_allocation(xml_doc)
       return if meta_field_value(xml_doc, "form-name").include?("Sales")
 
diff --git a/spec/fixtures/imports/logs/166fc004-392e-47a8-acb8-1c018734882b.xml b/spec/fixtures/imports/logs/166fc004-392e-47a8-acb8-1c018734882b.xml
index 0ddca74c3..8c5119bd0 100644
--- a/spec/fixtures/imports/logs/166fc004-392e-47a8-acb8-1c018734882b.xml
+++ b/spec/fixtures/imports/logs/166fc004-392e-47a8-acb8-1c018734882b.xml
@@ -9,7 +9,7 @@
     <meta:modified-date>2022-04-12T14:10:59.953121Z</meta:modified-date>
     <meta:status>submitted-valid</meta:status>
     <meta:reporting-year>2021</meta:reporting-year>
-    <meta:upload-method>Manual Entry</meta:upload-method>
+    <meta:upload-method>Bulk Upload</meta:upload-method>
     <meta:schema assert-valid="true"/>
     <meta:rules assert-valid="true"/>
   </meta:metadata>
diff --git a/spec/services/imports/lettings_logs_field_import_service_spec.rb b/spec/services/imports/lettings_logs_field_import_service_spec.rb
index 491e40ca7..b151e1bf0 100644
--- a/spec/services/imports/lettings_logs_field_import_service_spec.rb
+++ b/spec/services/imports/lettings_logs_field_import_service_spec.rb
@@ -77,7 +77,51 @@ RSpec.describe Imports::LettingsLogsFieldImportService do
     end
   end
 
-  context "when updating letings allocation values" do
+  context "when updating creation method" do
+    let(:field) { "creation_method" }
+    let(:lettings_log) { LettingsLog.find_by(old_id: lettings_log_id) }
+
+    before do
+      Imports::LettingsLogsImportService.new(storage_service, logger).create_logs(fixture_directory)
+      lettings_log_file.rewind
+    end
+
+    context "and the log was manually entered" do
+      it "logs that bulk upload id does not need setting" do
+        expect(logger).to receive(:info).with("lettings log with old id #{lettings_log_id} entered manually, no need for update")
+        expect { import_service.update_field(field, remote_folder) }.not_to(change { lettings_log.reload.creation_method })
+      end
+    end
+
+    context "and the log was bulk uploaded and the creation method is already correct" do
+      let(:lettings_log_id) { "166fc004-392e-47a8-acb8-1c018734882b" }
+
+      it "logs that bulk upload id does not need setting" do
+        expect(logger).to receive(:info).with(/lettings log \d+ creation method already set to bulk upload, no need for update/)
+        expect { import_service.update_field(field, remote_folder) }.not_to(change { lettings_log.reload.creation_method })
+      end
+    end
+
+    context "and the log was bulk uploaded and the creation method requires updating" do
+      let(:lettings_log_id) { "166fc004-392e-47a8-acb8-1c018734882b" }
+
+      it "logs that bulk upload id does not need setting" do
+        lettings_log.update!(creation_method: "single log")
+        expect(logger).to receive(:info).with(/lettings log \d+ creation method set to bulk upload/)
+        expect { import_service.update_field(field, remote_folder) }.to change { lettings_log.reload.creation_method }.to "bulk upload"
+      end
+    end
+
+    context "and the log was not previously imported" do
+      it "logs a warning that the log has not been found in the db" do
+        lettings_log.destroy!
+        expect(logger).to receive(:warn).with("lettings log with old id #{lettings_log_id} not found")
+        import_service.update_field(field, remote_folder)
+      end
+    end
+  end
+
+  context "when updating lettings allocation values" do
     let(:field) { "lettings_allocation" }
     let(:lettings_log) { LettingsLog.find_by(old_id: lettings_log_id) }
 
diff --git a/spec/services/imports/sales_logs_field_import_service_spec.rb b/spec/services/imports/sales_logs_field_import_service_spec.rb
index 799c66da8..36d83b578 100644
--- a/spec/services/imports/sales_logs_field_import_service_spec.rb
+++ b/spec/services/imports/sales_logs_field_import_service_spec.rb
@@ -26,7 +26,7 @@ RSpec.describe Imports::SalesLogsFieldImportService do
       .and_return(sales_log_file)
   end
 
-  context "when updating bulk upload id" do
+  context "when updating creation method" do
     let(:field) { "creation_method" }
     let(:sales_log) { SalesLog.find_by(old_id: sales_log_filename) }