diff --git a/src/lambda_function.py b/src/lambda_function.py
new file mode 100644
index 0000000..84c8590
--- /dev/null
+++ b/src/lambda_function.py
@@ -0,0 +1,35 @@
+import os
+import json
+import boto3
+from transferrer.transfer import transfer_shoot
+import logging
+logging.basicConfig(level=logging.INFO)
+
+logger = logging.getLogger()
+logger.setLevel(logging.INFO)
+
+ACCESSION_NUMBER = os.getenv("ACCESSION_NUMBER", "2754")
+
+
+def lambda_handler(event, context):
+    shoots = [single_handler(shoot_id) for shoot_id in get_shoot_ids(event)]
+    return {
+        'statusCode': 200,
+        'body': shoots
+    }
+
+
+def single_handler(shoot_id):
+    logger.info(f"transferring {shoot_id}")
+    transfer_shoot(
+        from_session=boto3.Session(),
+        to_session=boto3.Session(),
+        shoot_number=shoot_id,
+        accession_number=ACCESSION_NUMBER
+    )
+    return shoot_id
+
+
+def get_shoot_ids(event):
+    for record in event['Records']:
+        yield json.loads(record['body'])["Message"]
\ No newline at end of file
diff --git a/src/transferrer/transfer.py b/src/transferrer/transfer.py
index fce5948..7f888a3 100644
--- a/src/transferrer/transfer.py
+++ b/src/transferrer/transfer.py
@@ -1,4 +1,3 @@
-import logging
 import os
 import tempfile
 from transferrer.download import download_shoot
diff --git a/src/transferrer/upload.py b/src/transferrer/upload.py
index 7a8a71a..b8049dc 100644
--- a/src/transferrer/upload.py
+++ b/src/transferrer/upload.py
@@ -7,8 +7,10 @@
 
 logger = logging.getLogger(__name__)
 
+TARGET_BUCKET = os.getenv("TARGET_BUCKET", "wellcomecollection-archivematica-staging-transfer-source")
 
-def upload(session, zipfile_path, target_bucket_name="wellcomecollection-archivematica-staging-transfer-source"):
+
+def upload(session, zipfile_path, target_bucket_name=TARGET_BUCKET):
     logger.info(f"uploading {zipfile_path} to {target_bucket_name}")
     get_target_bucket(session, target_bucket_name).upload_file(zipfile_path, f"born-digital-accessions/{os.path.basename(zipfile_path)}")
 
@@ -18,4 +20,4 @@ def get_target_bucket(session, target_bucket):
 
 
 if __name__ == "__main__":
-   upload(boto3.Session(profile_name=os.environ["AWS_TARGET_PROFILE"]).resource('s3'), sys.argv[1])
+    upload(boto3.Session(profile_name=os.environ["AWS_TARGET_PROFILE"]), sys.argv[1])