diff --git a/swh/deposit/api/deposit_update.py b/swh/deposit/api/deposit_update.py
--- a/swh/deposit/api/deposit_update.py
+++ b/swh/deposit/api/deposit_update.py
@@ -139,8 +139,8 @@
         """Add new metadata/archive to existing deposit.
 
            source:
-           - http://swordapp.github.io/SWORDv2-Profile/SWORDProfile.html#protocoloperations_addingcontent_metadata  # noqa
-           - http://swordapp.github.io/SWORDv2-Profile/SWORDProfile.html#protocoloperations_addingcontent_multipart  # noqa
+           - http://swordapp.github.io/SWORDv2-Profile/SWORDProfile.html#protocoloperations_addingcontent_metadata
+           - http://swordapp.github.io/SWORDv2-Profile/SWORDProfile.html#protocoloperations_addingcontent_multipart
 
         This also deals with an empty post corner case to finalize a
         deposit.
@@ -153,16 +153,13 @@
 
             For the empty post case, this returns a 200.
 
-        """
+        """  # noqa
         assert deposit_id is not None
         if request.content_type.startswith("multipart/"):
-            return (
-                status.HTTP_201_CREATED,
-                EM_IRI,
-                self._multipart_upload(
-                    request, headers, collection_name, deposit_id=deposit_id
-                ),
+            data = self._multipart_upload(
+                request, headers, collection_name, deposit_id=deposit_id
             )
+            return (status.HTTP_201_CREATED, EM_IRI, data)
         # check for final empty post
         # source: http://swordapp.github.io/SWORDv2-Profile/SWORDProfile.html
         # #continueddeposit_complete
@@ -170,11 +167,10 @@
             data = self._empty_post(request, headers, collection_name, deposit_id)
             return (status.HTTP_200_OK, EDIT_SE_IRI, data)
 
-        return (
-            status.HTTP_201_CREATED,
-            EM_IRI,
-            self._atom_entry(request, headers, collection_name, deposit_id=deposit_id),
+        data = self._atom_entry(
+            request, headers, collection_name, deposit_id=deposit_id
         )
+        return (status.HTTP_201_CREATED, EM_IRI, data)
 
     def process_delete(self, req, collection_name: str, deposit_id: int) -> Dict:
         """Delete the container (deposit).
diff --git a/swh/deposit/tests/api/test_deposit_update.py b/swh/deposit/tests/api/test_deposit_update.py
--- a/swh/deposit/tests/api/test_deposit_update.py
+++ b/swh/deposit/tests/api/test_deposit_update.py
@@ -230,6 +230,70 @@
     assert set(requests_archive0) == set(requests_archive1)
 
 
+def test_add_both_archive_and_metadata_to_deposit(
+    authenticated_client,
+    deposit_collection,
+    partial_deposit_with_metadata,
+    atom_dataset,
+    sample_archive,
+):
+    """Scenario: Add both a new archive and new metadata to a partial deposit is ok
+
+    Response: 201
+
+    """
+    deposit = partial_deposit_with_metadata
+    requests = DepositRequest.objects.filter(deposit=deposit, type="metadata")
+    assert len(requests) == 1
+
+    requests_archive0 = DepositRequest.objects.filter(deposit=deposit, type="archive")
+    assert len(requests_archive0) == 1
+
+    update_uri = reverse(EDIT_SE_IRI, args=[deposit_collection.name, deposit.id])
+    archive = InMemoryUploadedFile(
+        BytesIO(sample_archive["data"]),
+        field_name=sample_archive["name"],
+        name=sample_archive["name"],
+        content_type="application/x-tar",
+        size=sample_archive["length"],
+        charset=None,
+    )
+
+    data_atom_entry = atom_dataset["entry-data1"]
+    atom_entry = InMemoryUploadedFile(
+        BytesIO(data_atom_entry.encode("utf-8")),
+        field_name="atom0",
+        name="atom0",
+        content_type='application/atom+xml; charset="utf-8"',
+        size=len(data_atom_entry),
+        charset="utf-8",
+    )
+
+    update_uri = reverse(EDIT_SE_IRI, args=[deposit_collection.name, deposit.id])
+    response = authenticated_client.post(
+        update_uri,
+        format="multipart",
+        data={"archive": archive, "atom_entry": atom_entry,},
+    )
+
+    assert response.status_code == status.HTTP_201_CREATED
+    requests = DepositRequest.objects.filter(deposit=deposit, type="metadata").order_by(
+        "id"
+    )
+
+    assert len(requests) == 1 + 1, "New deposit request archive got added"
+    expected_raw_meta0 = atom_dataset["entry-data0"] % (
+        deposit.external_id.encode("utf-8")
+    )
+    # a new one was added
+    assert requests[0].raw_metadata == expected_raw_meta0
+    assert requests[1].raw_metadata == data_atom_entry
+
+    # check we did not touch the other parts
+    requests_archive1 = DepositRequest.objects.filter(deposit=deposit, type="archive")
+    assert len(requests_archive1) == 1 + 1, "New deposit request metadata got added"
+
+
 def test_add_metadata_to_unknown_deposit(
     deposit_collection, authenticated_client, atom_dataset
 ):