diff --git a/lambdas/services/bulk_upload_metadata_processor_service.py b/lambdas/services/bulk_upload_metadata_processor_service.py
index d32fa39ec..bc5ea99ed 100644
--- a/lambdas/services/bulk_upload_metadata_processor_service.py
+++ b/lambdas/services/bulk_upload_metadata_processor_service.py
@@ -415,11 +415,14 @@ def copy_metadata_to_dated_folder(self):
         """Copy processed metadata CSV into a dated archive folder in S3."""
         logger.info("Copying metadata CSV to dated folder")
         current_datetime = datetime.now().strftime("%Y-%m-%d_%H-%M")
+        original_path_directory = str(Path(self.file_key).parent)
+        logger.info(f"Original file key is {self.file_key}")
+        destination_key = f"metadata/{original_path_directory}_{current_datetime}.csv"
         self.s3_service.copy_across_bucket(
             self.staging_bucket_name,
             self.file_key,
             self.staging_bucket_name,
-            f"metadata/{current_datetime}.csv",
+            destination_key,
         )
         self.s3_service.delete_object(self.staging_bucket_name, self.file_key)
 
diff --git a/lambdas/tests/unit/handlers/test_bulk_upload_metadata_handler.py b/lambdas/tests/unit/handlers/test_bulk_upload_metadata_handler.py
index 988a86d8a..385562ebd 100644
--- a/lambdas/tests/unit/handlers/test_bulk_upload_metadata_handler.py
+++ b/lambdas/tests/unit/handlers/test_bulk_upload_metadata_handler.py
@@ -1,21 +1,66 @@
-import pytest
-from handlers.bulk_upload_metadata_handler import lambda_handler
-from models.staging_metadata import METADATA_FILENAME
-from services.bulk_upload_metadata_service import BulkUploadMetadataService
+from unittest.mock import Mock
 
+from services.bulk_upload_metadata_processor_service import (
+    BulkUploadMetadataProcessorService,
+)
 
-def test_lambda_call_process_metadata_of_service_class(
-    set_env, event, context, mock_metadata_service
-):
-    lambda_handler(event, context)
 
-    mock_metadata_service.process_metadata.assert_called_once_with(METADATA_FILENAME)
+def test_copy_metadata_to_dated_folder_copies_and_deletes(mocker, monkeypatch):
+    monkeypatch.setenv("STAGING_STORE_BUCKET_NAME", "staging-bucket")
+    monkeypatch.setenv("METADATA_SQS_QUEUE_URL", "https://example.com/metadata-queue")
+    monkeypatch.setenv("EXPEDITE_SQS_QUEUE_URL", "https://example.com/expedite-queue")
 
+    mocker.patch(
+        "services.bulk_upload_metadata_processor_service.S3Service",
+        autospec=True,
+    )
+    mocker.patch(
+        "services.bulk_upload_metadata_processor_service.SQSService",
+        autospec=True,
+    )
+    mocker.patch(
+        "services.bulk_upload_metadata_processor_service.BulkUploadDynamoRepository",
+        autospec=True,
+    )
+    mocker.patch(
+        "services.bulk_upload_metadata_processor_service.BulkUploadSqsRepository",
+        autospec=True,
+    )
+    mocker.patch(
+        "services.bulk_upload_metadata_processor_service.BulkUploadS3Repository",
+        autospec=True,
+    )
+    mocker.patch(
+        "services.bulk_upload_metadata_processor_service.get_virus_scan_service",
+        autospec=True,
+    )
 
-@pytest.fixture
-def mock_metadata_service(mocker):
-    mocked_instance = mocker.patch(
-        "handlers.bulk_upload_metadata_handler.BulkUploadMetadataService",
-        spec=BulkUploadMetadataService,
-    ).return_value
-    yield mocked_instance
+    mocked_datetime = mocker.patch(
+        "services.bulk_upload_metadata_processor_service.datetime",
+    )
+    mocked_datetime.now.return_value.strftime.return_value = "2026-03-05_12-34"
+
+    formatter_service = Mock()
+
+    service = BulkUploadMetadataProcessorService(
+        metadata_formatter_service=formatter_service,
+        metadata_heading_remap={},
+        input_file_location="some/dir/metadata.csv",
+    )
+
+    service.s3_service = Mock()
+
+    service.copy_metadata_to_dated_folder()
+
+    expected_destination_key = "metadata/some/dir_2026-03-05_12-34.csv"
+
+    service.s3_service.copy_across_bucket.assert_called_once_with(
+        "staging-bucket",
+        "some/dir/metadata.csv",
+        "staging-bucket",
+        expected_destination_key,
+    )
+    service.s3_service.delete_object.assert_called_once_with(
+        "staging-bucket",
+        "some/dir/metadata.csv",
+    )