diff --git a/webknossos/Changelog.md b/webknossos/Changelog.md
index d60d33bba..108ba59b0 100644
--- a/webknossos/Changelog.md
+++ b/webknossos/Changelog.md
@@ -15,6 +15,7 @@ For upgrade instructions, please check the respective _Breaking Changes_ section
 ### Breaking Changes
 
 ### Added
+- Added argument `require_unique_name` to `Dataset.announce_manual_upload()`. Additionally, the method returns a tuple of `new_dataset_id` and `directory_name` now. [#1283](https://github.com/scalableminds/webknossos-libs/pull/1283)
 
 ### Changed
 
@@ -46,7 +47,6 @@ For upgrade instructions, please check the respective _Breaking Changes_ section
 - Fixed an issue with upsampling views. [#1287](https://github.com/scalableminds/webknossos-libs/pull/1287)
 
 
-
 ## [2.1.0](https://github.com/scalableminds/webknossos-libs/releases/tag/v2.1.0) - 2025-04-01
 [Commits](https://github.com/scalableminds/webknossos-libs/compare/v2.0.7...v2.1.0)
 
diff --git a/webknossos/webknossos/client/api_client/datastore_api_client.py b/webknossos/webknossos/client/api_client/datastore_api_client.py
index 771d93e24..8f258c1d4 100644
--- a/webknossos/webknossos/client/api_client/datastore_api_client.py
+++ b/webknossos/webknossos/client/api_client/datastore_api_client.py
@@ -1,5 +1,6 @@
 from webknossos.client.api_client.models import (
     ApiDatasetAnnounceUpload,
+    ApiDatasetManualUploadSuccess,
     ApiDatasetUploadInformation,
     ApiDatasetUploadSuccess,
     ApiReserveDatasetUploadInformation,
@@ -72,10 +73,12 @@ def dataset_reserve_manual_upload(
         self,
         dataset_announce: ApiDatasetAnnounceUpload,
         token: str | None,
-    ) -> None:
+    ) -> ApiDatasetManualUploadSuccess:
         route = "/datasets/reserveManualUpload"
         query: Query = {"token": token}
-        self._post_json(route, dataset_announce, query)
+        return self._post_json_with_json_response(
+            route, dataset_announce, ApiDatasetManualUploadSuccess, query
+        )
 
     def dataset_get_raw_data(
         self,
diff --git a/webknossos/webknossos/client/api_client/models.py b/webknossos/webknossos/client/api_client/models.py
index 9d05f501e..7785add88 100644
--- a/webknossos/webknossos/client/api_client/models.py
+++ b/webknossos/webknossos/client/api_client/models.py
@@ -132,6 +132,7 @@ class ApiDatasetAnnounceUpload:
     organization: str
     initial_team_ids: list[str]
     folder_id: str
+    require_unique_name: bool
 
 
 @attr.s(auto_attribs=True)
@@ -155,6 +156,12 @@ class ApiDatasetUploadSuccess:
     new_dataset_id: str
 
 
+@attr.s(auto_attribs=True)
+class ApiDatasetManualUploadSuccess:
+    new_dataset_id: str
+    directory_name: str
+
+
 @attr.s(auto_attribs=True)
 class ApiLinkedLayerIdentifier:
     organization_id: str
diff --git a/webknossos/webknossos/dataset/dataset.py b/webknossos/webknossos/dataset/dataset.py
index 87187de8b..fd70fc0b5 100644
--- a/webknossos/webknossos/dataset/dataset.py
+++ b/webknossos/webknossos/dataset/dataset.py
@@ -470,8 +470,9 @@ def announce_manual_upload(
         organization: str,
         initial_team_ids: list[str],
         folder_id: str | RemoteFolder,
+        require_unique_name: bool = False,
         token: str | None = None,
-    ) -> None:
+    ) -> tuple[str, str]:
         """Announce a manual dataset upload to WEBKNOSSOS.
 
         Used when manually uploading datasets to the file system of a datastore.
@@ -512,10 +513,14 @@ def announce_manual_upload(
             organization=organization,
             initial_team_ids=initial_team_ids,
             folder_id=folder_id,
+            require_unique_name=require_unique_name,
         )
         upload_url = _cached_get_upload_datastore(context)
         datastore_api = context.get_datastore_api_client(upload_url)
-        datastore_api.dataset_reserve_manual_upload(dataset_announce, token=token)
+        response = datastore_api.dataset_reserve_manual_upload(
+            dataset_announce, token=token
+        )
+        return response.new_dataset_id, response.directory_name
 
     @classmethod
     def trigger_reload_in_datastore(